ci: Build fixes

- Simplify builds by separating dev/stable workflows
- Fix Helm deploy key
- Remove deploy_key.env (already using deploy key in secrets)
- Fix paths matching on push and pull_request triggers
- Fix possible issues with tag difference between ERPNext and Frappe (add tag resolving step before pushing)
- Don't login, push Docker images and release Helm chart on forks
- Don't test on version 12 (there's no test for this version)
- Remove frappe-installer (from chore: use github actions #525)
- Fix badges in readme

.github/workflows/build_develop.yml

@@ -0,0 +1,88 @@
+name: Build Develop
+
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - .github/**
+      - build/**
+      - installation/**
+      - tests/**
+      - .dockerignore
+      - docker-bake.hcl
+      - docker-compose.yml
+      - env*
+
+  # Nightly builds at 12:00 am
+  schedule:
+    - cron: 0 0 * * *
+
+  workflow_dispatch:
+
+jobs:
+  build_bench:
+    name: Bench image
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: docker/setup-buildx-action@v1
+
+      - uses: docker/login-action@v1
+        if: github.repository == 'frappe/frappe_docker' && github.event_name != 'pull_request'
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/bake-action@v1.6.0
+        with:
+          files: docker-bake.hcl
+          targets: frappe-bench
+          push: ${{ github.repository == 'frappe/frappe_docker' && github.event_name != 'pull_request' }}
+
+  build_main:
+    name: Frappe and ERPNext images
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: docker/setup-buildx-action@v1
+
+      - uses: docker/login-action@v1
+        if: github.repository == 'frappe/frappe_docker' && github.event_name != 'pull_request'
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Build Frappe images
+        uses: docker/bake-action@v1.6.0
+        with:
+          files: docker-bake.hcl
+          targets: frappe-develop
+          load: true
+
+      - name: Build ERPNext images
+        uses: docker/bake-action@v1.6.0
+        with:
+          files: docker-bake.hcl
+          targets: erpnext-develop
+          load: true
+
+      - name: Test
+        run: ./.github/scripts/install-deps-and-test.sh
+
+      - name: Push Frappe images
+        if: github.repository == 'frappe/frappe_docker' && github.event_name != 'pull_request'
+        uses: docker/bake-action@v1.6.0
+        with:
+          files: docker-bake.hcl
+          targets: frappe-develop
+          push: true
+
+      - name: Push ERPNext images
+        if: github.repository == 'frappe/frappe_docker' && github.event_name != 'pull_request'
+        uses: docker/bake-action@v1.6.0
+        with:
+          files: docker-bake.hcl
+          targets: erpnext-develop
+          push: true