added SSH key to iap repo

.github/workflows/ci.yml

@@ -17,6 +17,13 @@ jobs:
     timeout-minutes: 5
 
     steps:
+      - uses: shaunco/ssh-agent@git-repo-mapping
+        with:
+          ssh-private-key: |
+            ${{ secrets.M3_LIGHTMETER_IAP_KEY }}
+          repo-mappings: |
+            github.com/vodemn/m3_lightmeter_iap
+
       - uses: actions/checkout@v3
       - uses: subosito/flutter-action@v2
           with:
@@ -33,6 +40,5 @@ jobs:
 
       - name: Analyze project source
         run: flutter analyze lib --fatal-infos
-
 #      - name: Run tests
 #        run: flutter test