feat: only publish docker img on master

.github/workflows/linux.yml

@@ -7,7 +7,7 @@ on:
     branches:
       - master
       - "*"
-      - '!gh-pages'
+      - "!gh-pages"
 
 jobs:
   build_and_test:
@@ -34,7 +34,6 @@ jobs:
             target
           key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
 
-
       - name: configure GPG key
         if: (github.ref == 'refs/heads/master' || github.event_name == 'push') && github.repository == 'realaravinth/librepages'
         run: echo -n "$RELEASE_BOT_GPG_SIGNING_KEY" | gpg --batch --import --pinentry-mode loopback
@@ -61,7 +60,11 @@ jobs:
       - name: run tests
         run: make test
 
-      - name: build and publish docker images
+      - name: make docker images
+        run: make docker
+
+      - name: publish docker images
+        if: (github.ref == 'refs/heads/master' || github.event_name == 'push') && github.repository == 'realaravinth/librepages'
         run: make docker-publish
 
       - name: publish bins