fix(SA-675): add packages write permission and fix Dockerfile CMD

- Add permissions block with packages:write to allow pushing to
  GitHub Packages registry
- Change Dockerfile CMD from shell form to JSON array format
  to properly handle OS signals

Author: gjarzebak95

.github/workflows/ci.yml

@@ -12,6 +12,9 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

Dockerfile

@@ -5,4 +5,4 @@ COPY package.json package-lock.json ./
 RUN npm install --production
 COPY . .
 
-CMD cd /app && npm start 
+CMD ["npm", "start"]