chore: Remove unused GitHub workflows

.github/workflows/publish.yaml

@@ -0,0 +1,45 @@
+name: Build && Push
+
+# Controls when the action will run.
+on:
+    push:
+        branches:
+            - master
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+    build:
+        runs-on: ubuntu-latest
+
+        # Steps represent a sequence of tasks that will be executed as part of the job
+        steps:
+            # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+            - uses: actions/checkout@v3
+              with:
+                  fetch-depth: 0
+
+            - name: Set up Docker Buildx
+              uses: docker/setup-buildx-action@v2
+
+            - name: Login to GitHub Container Registry
+              uses: docker/login-action@v2
+              with:
+                  registry: ghcr.io
+                  username: ${{ github.actor }}
+                  password: ${{ secrets.GITHUB_TOKEN }}
+
+            - name: Create image tags
+              id: meta
+              uses: docker/metadata-action@v4
+              with:
+                  images: ghcr.io/scicatproject/matrix-react-sdk
+                  flavor: latest=true # adds :latest tag to outputs.tags
+                  tags: type=sha,format=long,prefix= # adds :<sha> tag to outputs.tags
+
+            - name: Build and push
+              id: docker_build
+              uses: docker/build-push-action@v3
+              with:
+                  context: .
+                  push: true
+                  tags: ${{ steps.meta.outputs.tags }}