[GHA][REST integration] Applied Composer audit ignores inside tested package

Audit ignores were only ever configured on the workflow checkout, which
becomes vendor/ibexa/rest solely when this callable runs in ibexa/rest
itself. For external callers (e.g. ibexa/http-cache) the checkout is
the caller's package and vendor/ibexa/rest comes pristine from the 4.6
branch, so its composer update hit Composer 2.10's advisory blocking on
PHP 7.4 (unsolvable twig/guzzle advisories on EOL PHP).

Applying the ignores inside vendor/ibexa/rest covers every caller and
makes the runner-side audit ignores step redundant, hence it's dropped.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: alongosz

.github/workflows/integration-tests-callable.yaml

@@ -45,11 +45,6 @@ jobs:
                     coverage: none
                     github-token: ${{ steps.generate_token.outputs.token }}
 
-            -   name: Ignore unsolvable advisories for PHP versions past EOL
-                uses: ibexa/gh-workflows/actions/composer-audit-ignore@main
-                with:
-                    php-version: '${{ matrix.php }}'
-
             -   name: Cache dependencies
                 uses: actions/cache@v6
                 with:
@@ -76,7 +71,20 @@ jobs:
                     cd "$HOME/build/project"
                     docker compose --env-file=.env exec -T --user www-data app sh -c "APP_ENV=behat php bin/console ibexa:behat:create-language 'pol-PL' 'Polish (polski)'"
 
+            -   name: Configure Composer audit ignores inside the tested package
+                run: |
+                    cd "$HOME/build/project"
+                    docker compose --env-file=.env exec -T --user www-data app sh -c "
+                        cd vendor/ibexa/rest &&
+                        curl -fsSLO https://raw.githubusercontent.com/ibexa/ci-scripts/main/bin/_common/configure_composer_audit_ignores.sh &&
+                        bash configure_composer_audit_ignores.sh
+                    "
+
             -   name: Run tests
                 run: |
                     cd "$HOME/build/project"
-                    docker compose --env-file=.env exec -T --user www-data -e EZP_TEST_REST_HOST=$WEB_HOST app sh -c "cd vendor/ibexa/rest && composer update && composer test-functional"
+                    docker compose --env-file=.env exec -T --user www-data -e EZP_TEST_REST_HOST=$WEB_HOST app sh -c "
+                        cd vendor/ibexa/rest &&
+                        composer update &&
+                        composer test-functional
+                    "