feat: update version to 2.13.1

[bzp2010]

Please answer these questions before submitting a pull request, or your PR will get closed.

Why submit this pull request?

• Bugfix
• New feature provided
• Improve performance
• Backport patches

What changes will this PR take into?

Bump version code from 2.13 and 2.13.0 to 2.13.1.

[codecov-commenter]

Codecov Report

Merging #2659 (debbc24) into release/2.13 (19f642e) will decrease coverage by 18.96%.
The diff coverage is n/a.

@@                Coverage Diff                @@
##           release/2.13    #2659       +/-   ##
=================================================
- Coverage         68.94%   49.98%   -18.97%     
=================================================
  Files               190       44      -146     
  Lines              7536     3435     -4101     
  Branches            843        0      -843     
=================================================
- Hits               5196     1717     -3479     
+ Misses             2036     1500      -536     
+ Partials            304      218       -86     

Flag	Coverage Δ
backend-e2e-test-ginkgo	?
backend-unit-test	49.98% <ø> (ø)
frontend-e2e-test	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
api/main.go	0.00% <0.00%> (-100.00%)	⬇️
api/internal/utils/version.go	0.00% <0.00%> (-100.00%)	⬇️
api/internal/filter/request_id.go	0.00% <0.00%> (-100.00%)	⬇️
api/internal/core/entity/entity.go	0.00% <0.00%> (-90.91%)	⬇️
api/internal/core/store/storehub.go	0.00% <0.00%> (-73.11%)	⬇️
api/internal/utils/closer.go	0.00% <0.00%> (-71.43%)	⬇️
api/internal/handler/proto/proto.go	0.00% <0.00%> (-67.26%)	⬇️
api/internal/filter/schema.go	0.00% <0.00%> (-56.00%)	⬇️
api/internal/filter/invalid_request.go	44.44% <0.00%> (-55.56%)	⬇️
api/internal/handler/stream_route/stream_route.go	12.98% <0.00%> (-54.55%)	⬇️
... and 172 more

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