fix: add workflow permissions

Author: sparfenyuk

.github/workflows/cd.yaml

@@ -8,6 +8,9 @@ jobs:
   docker-hub:
     name: Push Docker image to Docker Hub
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
@@ -27,6 +30,9 @@ jobs:
   ghcr-io:
     name: Push Docker image to ghcr.io
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2