OSSRH Migration - fix secrets

Author: frantuma

.github/workflows/maven-master.yml

@@ -69,6 +69,9 @@ jobs:
           platforms: linux/amd64,linux/arm/v7,linux/arm64/v8,linux/ppc64le,linux/s390x
           provenance: false
           tags: swaggerapi/swagger-codegen-cli:unstable
+        env:
+          MAVEN_USERNAME: ${{ secrets.MAVEN_CENTRAL_USERNAME }}
+          MAVEN_PASSWORD: ${{ secrets.MAVEN_CENTRAL_PASSWORD }}
   build-java8:
 
     runs-on: ubuntu-latest
@@ -94,4 +97,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-maven-
       - name: Build with Maven
-        run: mvn -B -U clean verify -DskipTests -Dmaven.test.skip=true -Dmaven.site.skip=true -Dmaven.javadoc.skip=true -Psamples-java8 --file pom.xml
+        run: mvn -B -U clean verify -DskipTests -Dmaven.test.skip=true -Dmaven.site.skip=true -Dmaven.javadoc.skip=true -Psamples-java8 --file pom.xml
+        env:
+          MAVEN_USERNAME: ${{ secrets.MAVEN_CENTRAL_USERNAME }}
+          MAVEN_PASSWORD: ${{ secrets.MAVEN_CENTRAL_PASSWORD }}