ci(release): fixes after 2.5.0-M3

- Enable pre-release test
- git push before calling JReleaser, else the tag is not on the correct commit

.build/justfile-for-release

@@ -53,6 +53,7 @@ release: pre-release
     @echo "🚀 Release steps..."
     @echo "Commit release version and push upstream"
     git commit -am "chore(release): release Mutiny ${RELEASE_VERSION}"
+    git push
     @echo "Call JReleaser"
     ./mvnw -settings .build/maven-ci-settings.xml --batch-mode --no-transfer-progress -Pjreleaser jreleaser:full-release -pl :mutiny-project
     @echo "Bump to 999-SNAPSHOT and push upstream"

pom.xml

@@ -552,6 +552,7 @@
                                             </hide>
                                         </changelog>
                                         <prerelease>
+                                            <enabled>true</enabled>
                                             <pattern>.*-M[0-9]+</pattern>
                                         </prerelease>
                                         <discussionCategoryName>Announcements</discussionCategoryName>