fix(ci): minor fixes for workflows

Author: sthulb

.github/workflows/check-e2e.yml

@@ -68,4 +68,4 @@ jobs:
           role-to-assume: ${{ secrets.AWS_IAM_ROLE }}
           aws-region: us-east-1
       - name: Run e2e test with Maven
-        run: mvn -DskipTests install --file pom.xml && mvn -Pe2e -B verify --file powertools-e2e-tests/pom.xml
+        run: JAVA_VERSION=${{ matrix.java }} mvn -DskipTests install --file pom.xml && mvn -Pe2e -B verify --file powertools-e2e-tests/pom.xml

.github/workflows/security-dependencies-check.yml

@@ -36,4 +36,5 @@ jobs:
       - name: Verify Contents
         uses: actions/dependency-review-action@3b139cfc5fae8b618d3eae3675e383bb1769c019 # v4.5.0
         with:
-          config-file: './.github/dependency-review-config.yml'
+          config-file: './.github/dependency-review-config.yml'
+          head-ref: ${{ github.ref }}