chore(deps): update kubewarden/github-actions action to v3.1.15

Author: renovate[bot]

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
 
   test:
     name: run tests and linters
-    uses: kubewarden/github-actions/.github/workflows/reusable-test-policy-rust.yml@v3.1.14
+    uses: kubewarden/github-actions/.github/workflows/reusable-test-policy-rust.yml@v3.1.15
 
   release:
     needs: test
@@ -22,6 +22,6 @@ jobs:
       # Required by cosign keyless signing
       id-token: write
 
-    uses: kubewarden/github-actions/.github/workflows/reusable-release-policy-rust.yml@v3.1.14
+    uses: kubewarden/github-actions/.github/workflows/reusable-release-policy-rust.yml@v3.1.15
     with:
       oci-target: ghcr.io/${{ github.repository_owner }}/policies/selinux-psp

.github/workflows/test.yml

@@ -3,4 +3,4 @@ name: Continuous integration
 jobs:
   test:
     name: run tests and linters
-    uses: kubewarden/github-actions/.github/workflows/reusable-test-policy-rust.yml@v3.1.14
+    uses: kubewarden/github-actions/.github/workflows/reusable-test-policy-rust.yml@v3.1.15