chore: Rename next build job. Send notification of its failure to mat…

…termost (#1209)

Signed-off-by: Mykhailo Kuznietsov <[email protected]>

.github/workflows/build-publish-next.yml → .github/workflows/next-build.yml

@@ -47,3 +47,14 @@ jobs:
       run: printf "//registry.npmjs.org/:_authToken=${{ secrets.CHE_NPM_AUTH_TOKEN }}\n" >> ~/.npmrc
     - name: Publish packages to npmjs
       run: yarn publish:next
+    - name: Create failure MM message
+      if: ${{ failure() }}
+      run: |
+        echo "{\"text\":\":no_entry_sign: Next Che Theia build has failed: https://github.com/eclipse-che/che-theia/actions/workflows/next-build.yml\"}" > mattermost.json
+    - name: Send MM message
+      if: ${{ failure() }}
+      uses: mattermost/[email protected]
+      env:
+        MATTERMOST_WEBHOOK_URL: ${{ secrets.MATTERMOST_WEBHOOK_URL }}
+        MATTERMOST_CHANNEL: eclipse-che-ci
+        MATTERMOST_USERNAME: che-bot