[PERF] Jackson reflection-free serialization/deserialization (#42946)

* [PERF] Jackson reflection-free serialization/deserialization

Closes #42945

Signed-off-by: Martin Bartoš <mabartos@redhat.com>

* Update docs/guides/server/configuration-production.adoc

Co-authored-by: Alexander Schwartz <alexander.schwartz@gmx.net>
Signed-off-by: Martin Bartoš <mabartos@redhat.com>

* Docs improvements

Signed-off-by: Martin Bartoš <mabartos@redhat.com>

* Update docs/guides/server/configuration-production.adoc

Co-authored-by: Václav Muzikář <vaclav@muzikari.cz>
Signed-off-by: Martin Bartoš <mabartos@redhat.com>

* Polish the features template macros

Signed-off-by: Martin Bartoš <mabartos@redhat.com>

---------

Signed-off-by: Martin Bartoš <mabartos@redhat.com>
Co-authored-by: Alexander Schwartz <alexander.schwartz@gmx.net>
Co-authored-by: Václav Muzikář <vaclav@muzikari.cz>

.github/workflows/ci.yml

@@ -140,10 +140,11 @@ jobs:
         uses: ./.github/actions/integration-test-setup
 
       - name: Run base tests
+        # enable the http-optimized-serializers feature for the old testsuite to verify it works as expected
         run: |
           TESTS=`testsuite/integration-arquillian/tests/base/testsuites/base-suite.sh ${{ matrix.group }}`
           echo "Tests: $TESTS"
-          ./mvnw test ${{ env.SUREFIRE_RETRY }} -Pauth-server-quarkus -Dtest=$TESTS -pl testsuite/integration-arquillian/tests/base 2>&1 | misc/log/trimmer.sh
+          ./mvnw test ${{ env.SUREFIRE_RETRY }} -Pauth-server-quarkus -Dauth.server.feature=http-optimized-serializers -Dtest=$TESTS -pl testsuite/integration-arquillian/tests/base 2>&1 | misc/log/trimmer.sh
 
       - uses: ./.github/actions/upload-flaky-tests
         name: Upload flaky tests