APK Metadata decoding should be backwards compatible

[wagoodman]

A breaking changes of the data shape for the APK metadata was introduced with #1063, however, we should always have unmarshallers that support all previous versions of data structures. This PR adds custom unmarshallers for APKMetadata to do just that (remain backwards compatible).

[github-actions]

Benchmark Test Results

Benchmark results from the latest changes vs base branch

name                                                       old time/op    new time/op    delta
ImagePackageCatalogers/alpmdb-cataloger-2                    11.8ms ± 1%    15.6ms ± 2%  +32.34%  (p=0.008 n=5+5)
ImagePackageCatalogers/ruby-gemspec-cataloger-2              1.31ms ± 1%    1.87ms ±14%  +42.58%  (p=0.016 n=4+5)
ImagePackageCatalogers/python-package-cataloger-2            3.32ms ± 1%    4.47ms ± 4%  +34.69%  (p=0.008 n=5+5)
ImagePackageCatalogers/php-composer-installed-cataloger-2    1.08ms ± 1%    1.50ms ± 2%  +39.12%  (p=0.008 n=5+5)
ImagePackageCatalogers/javascript-package-cataloger-2         751µs ± 1%    1014µs ± 2%  +35.09%  (p=0.008 n=5+5)
ImagePackageCatalogers/node-binary-cataloger-2               6.78µs ± 1%    8.75µs ± 2%  +29.02%  (p=0.008 n=5+5)
ImagePackageCatalogers/dpkgdb-cataloger-2                     859µs ± 1%    1187µs ± 1%  +38.18%  (p=0.008 n=5+5)
ImagePackageCatalogers/rpm-db-cataloger-2                    1.27ms ± 0%    1.72ms ± 2%  +34.81%  (p=0.008 n=5+5)
ImagePackageCatalogers/java-cataloger-2                      14.3ms ± 1%    18.9ms ± 3%  +32.64%  (p=0.008 n=5+5)
ImagePackageCatalogers/apkdb-cataloger-2                     1.32ms ± 2%    1.73ms ± 3%  +31.32%  (p=0.008 n=5+5)
ImagePackageCatalogers/go-module-binary-cataloger-2          6.78µs ± 2%    8.51µs ± 2%  +25.53%  (p=0.008 n=5+5)
ImagePackageCatalogers/dotnet-deps-cataloger-2               1.37ms ± 1%    1.85ms ± 3%  +35.25%  (p=0.008 n=5+5)
ImagePackageCatalogers/portage-cataloger-2                    722µs ± 1%     980µs ± 4%  +35.88%  (p=0.008 n=5+5)

name                                                       old alloc/op   new alloc/op   delta
ImagePackageCatalogers/alpmdb-cataloger-2                    5.26MB ± 0%    5.26MB ± 0%     ~     (p=0.690 n=5+5)
ImagePackageCatalogers/ruby-gemspec-cataloger-2               205kB ± 0%     205kB ± 0%     ~     (p=0.222 n=5+5)
ImagePackageCatalogers/python-package-cataloger-2             961kB ± 0%     961kB ± 0%   -0.07%  (p=0.032 n=5+5)
ImagePackageCatalogers/php-composer-installed-cataloger-2     217kB ± 0%     217kB ± 0%     ~     (p=0.222 n=5+5)
ImagePackageCatalogers/javascript-package-cataloger-2         159kB ± 0%     159kB ± 0%     ~     (p=0.421 n=5+5)
ImagePackageCatalogers/node-binary-cataloger-2               1.12kB ± 0%    1.12kB ± 0%     ~     (all equal)
ImagePackageCatalogers/dpkgdb-cataloger-2                     199kB ± 0%     199kB ± 0%     ~     (p=0.056 n=5+5)
ImagePackageCatalogers/rpm-db-cataloger-2                     303kB ± 0%     302kB ± 0%   -0.18%  (p=0.008 n=5+5)
ImagePackageCatalogers/java-cataloger-2                      3.49MB ± 0%    3.49MB ± 0%     ~     (p=0.841 n=5+5)
ImagePackageCatalogers/apkdb-cataloger-2                     1.26MB ± 0%    1.26MB ± 0%   +0.06%  (p=0.016 n=5+5)
ImagePackageCatalogers/go-module-binary-cataloger-2          1.12kB ± 0%    1.12kB ± 0%     ~     (all equal)
ImagePackageCatalogers/dotnet-deps-cataloger-2                374kB ± 0%     375kB ± 0%   +0.10%  (p=0.008 n=5+5)
ImagePackageCatalogers/portage-cataloger-2                    138kB ± 0%     138kB ± 0%   -0.13%  (p=0.016 n=5+5)

name                                                       old allocs/op  new allocs/op  delta
ImagePackageCatalogers/alpmdb-cataloger-2                     85.7k ± 0%     85.7k ± 0%     ~     (p=1.000 n=5+5)
ImagePackageCatalogers/ruby-gemspec-cataloger-2               4.24k ± 0%     4.24k ± 0%     ~     (p=0.167 n=5+5)
ImagePackageCatalogers/python-package-cataloger-2             16.5k ± 0%     16.5k ± 0%     ~     (p=0.437 n=5+5)
ImagePackageCatalogers/php-composer-installed-cataloger-2     5.50k ± 0%     5.50k ± 0%     ~     (p=0.079 n=5+5)
ImagePackageCatalogers/javascript-package-cataloger-2         3.33k ± 0%     3.33k ± 0%     ~     (all equal)
ImagePackageCatalogers/node-binary-cataloger-2                 38.0 ± 0%      38.0 ± 0%     ~     (all equal)
ImagePackageCatalogers/dpkgdb-cataloger-2                     4.46k ± 0%     4.46k ± 0%     ~     (all equal)
ImagePackageCatalogers/rpm-db-cataloger-2                     8.11k ± 0%     8.11k ± 0%     ~     (all equal)
ImagePackageCatalogers/java-cataloger-2                       57.5k ± 0%     57.5k ± 0%     ~     (p=1.000 n=5+5)
ImagePackageCatalogers/apkdb-cataloger-2                      5.45k ± 0%     5.45k ± 0%     ~     (p=0.683 n=5+5)
ImagePackageCatalogers/go-module-binary-cataloger-2            38.0 ± 0%      38.0 ± 0%     ~     (all equal)
ImagePackageCatalogers/dotnet-deps-cataloger-2                7.12k ± 0%     7.12k ± 0%     ~     (all equal)
ImagePackageCatalogers/portage-cataloger-2                    3.58k ± 0%     3.58k ± 0%     ~     (all equal)