Fix upstream tests

Force "-SNAPSHOT" suffix to upstream version
to install gem consistently.
gem-maven-plugin appends it when the gem version
is not strictly semver installing a gem with "-SNAPSHOT"
in the version but not in the maven repo path.

.github/workflows/continuous-integration.yaml

@@ -66,7 +66,7 @@ jobs:
           gradlew.bat -i -S check
   test-asciidoctor-upstream:
     name: Test Asciidoctor Upstream
-    needs: 
+    needs:
       - build
       - build-windows
     strategy:
@@ -80,10 +80,10 @@ jobs:
           - ubuntu-latest
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 1
-      - uses: actions/setup-java@v2
+      - uses: actions/setup-java@v3
         with:
           distribution: temurin
           java-version: ${{ matrix.java }}

ci/test-asciidoctor-upstream.sh

@@ -20,15 +20,16 @@ wget --quiet -O $SRC_DIR.zip https://github.com/asciidoctor/asciidoctor/archive/
 unzip -q $SRC_DIR.zip
 cp ../../ci/asciidoctor-gem-installer.pom $SRC_DIR/pom.xml
 cd $SRC_DIR
-readonly ASCIIDOCTOR_VERSION=`grep 'VERSION' ./lib/asciidoctor/version.rb | sed "s/.*'\(.*\)'.*/\1/" | sed "s/[.]dev$/.dev-SNAPSHOT/"`
+# force SNAPSHOT trailing to keep always consistency, gem-maven-plugin adds it depending on version format, breaking the build
+readonly ASCIIDOCTOR_VERSION="$(grep 'VERSION' ./lib/asciidoctor/version.rb | sed "s/.*'\(.*\)'.*/\1/" | sed "s/[.]dev$/.dev-SNAPSHOT/")-SNAPSHOT"
 # we don't use sed -i here for compatibility with OSX
 sed "s;<version></version>;<version>$ASCIIDOCTOR_VERSION</version>;" pom.xml > pom.xml.sedtmp && \
   mv -f pom.xml.sedtmp pom.xml
 
 # we override the jruby version here with one supported by java9, additionally java9 needs some add-opens arguments that need to be ignored on older jvms
-mvn install -B --no-transfer-progress -Dgemspec=asciidoctor.gemspec -Djruby.version=9.2.17.0 -Djruby.jvmargs="-XX:+IgnoreUnrecognizedVMOptions --add-opens=java.base/java.security.cert=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.util.zip=ALL-UNNAMED"
+mvn install -B --no-transfer-progress -Dgemspec="asciidoctor.gemspec" -Djruby.version=9.2.17.0 -Djruby.jvmargs="-XX:+IgnoreUnrecognizedVMOptions --add-opens=java.base/java.security.cert=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.util.zip=ALL-UNNAMED"
 popd
 
 ## Test against installed gem
-./gradlew -S -Pskip.signing -PasciidoctorGemVersion=$ASCIIDOCTOR_VERSION -PuseMavenLocal=true check
+./gradlew --no-daemon -S -Pskip.signing -PasciidoctorGemVersion="$ASCIIDOCTOR_VERSION" -PuseMavenLocal=true check
 exit $?