restore workflows accidentally removed

resurected from https://code.forgejo.org/actions/setup-forgejo/pulls/54/files

.forgejo/workflows/forgejo.sh

@@ -0,0 +1,28 @@
+on:
+  push:
+    paths:
+      - forgejo.sh
+      - .forgejo/workflows/forgejo-sh.yml
+  pull_request:
+    paths:
+      - forgejo.sh
+      - .forgejo/workflows/forgejo-sh.yml
+
+jobs:
+  forgejo-sh:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v3
+      - run: |
+          set -x
+          export PATH=$(pwd):$PATH
+          forgejo-dependencies.sh install_docker
+          (
+            echo codeberg.org/forgejo/forgejo 1.19.4-0
+            echo codeberg.org/forgejo/forgejo 1.20.4-1
+            echo codeberg.org/forgejo-experimental/forgejo 1.21.0-2-rc0
+          ) | while read url version ; do
+            echo "=========================== launching forgejo v$version =========="
+            forgejo.sh setup root admin1234 $url $version
+            forgejo.sh teardown
+          done          

.forgejo/workflows/integration-nested.yml

@@ -0,0 +1,24 @@
+on: [ push, pull_request ]
+jobs:
+  integration-nested:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v3
+      - run: |
+          set -x
+          LXC_IP_PREFIX=10.0.9 ./forgejo-dependencies.sh
+          export PATH=$(pwd):$PATH
+          forgejo.sh setup root admin1234 codeberg.org/forgejo/forgejo 1.20
+          #
+          # Uncomment the following for a shortcut to debugging the Forgejo runner.
+          # It will build the runner from a designated repository and branch instead of
+          # downloading it from a canonical release.
+          #
+          # ./forgejo-test-helper.sh build_runner http://code.forgejo.org/forgejo/runner branch-under-debug
+          # export PATH=$(pwd)/forgejo-runner:$PATH
+          #
+          ./forgejo-runner.sh setup
+          export FORGEJO_RUNNER_LOGS=forgejo-runner.log
+          echo "============================ sanity-check ==================="
+          ./forgejo-test-helper.sh push_self_action http://root:admin1234@$(cat forgejo-ip):3000 root setup-forgejo vTest
+          ./forgejo-test-helper.sh run_workflow testdata/sanity-checks http://root:admin1234@$(cat forgejo-ip):3000 root sanity-check setup-forgejo $(cat forgejo-token)          

.forgejo/workflows/integration.yml

@@ -9,7 +9,7 @@ jobs:
           - version: "1.21.0-2-rc0"
             image: codeberg.org/forgejo-experimental/forgejo
             # keep "cron" last otherwise it will linger and pollute the following runs
-            tests: "${{ vars.V120_TESTS || 'echo artifacts service checkout pull-request container expression local-action docker-action if if-fail cron' }}"
+            tests: "${{ vars.V121_TESTS || 'echo artifacts service checkout pull-request container expression local-action docker-action if if-fail cron' }}"
           - version: "1.20"
             image: codeberg.org/forgejo/forgejo
             tests: "${{ vars.V120_TESTS || 'echo checkout service container expression local-action docker-action if if-fail' }}"