debezium/dbz#2133 reduce parallelism in github action matrix in debezium-quarkus

Signed-off-by: kmos <kmos@commonhaus.dev>

Author: kmos

.github/workflows/ci-build.yml

@@ -94,6 +94,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ check_style, build-debezium-quarkus-dependencies, build-debezium-extension-runtime-core ]
     strategy:
+      max-parallel: 4
       matrix:
         maven-props:
           - quarkus.test.integration-test-profile=multi

.github/workflows/pr-build.yml

@@ -260,6 +260,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ check_style, build-debezium-quarkus-dependencies, build-debezium-extension-runtime-core, file_changes ]
     strategy:
+      max-parallel: 4
       fail-fast: false
       matrix:
         maven-props: