deploy: Only from master

Signed-off-by: Vitaliy Potyarkin <v.potyarkin@yadro.com>

.forgejo/workflows/build.yml

@@ -36,7 +36,7 @@ jobs:
           curl -v --head frostfs.info
 
       - name: Setup SSH environment
-        # TODO: add deploy conditions
+        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
         env:
           SSH_AUTH_SOCK: /tmp/ssh_agent.socket
         run: |
@@ -52,9 +52,9 @@ jobs:
           rm ~/.ssh/key
 
       - name: make deploy
+        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
         run: |
           ssh-add -L
           make deploy
-        # TODO: add deploy conditions
         env:
           SSH_AUTH_SOCK: /tmp/ssh_agent.socket