core: migrate ci workflows to forgejo

Reviewed-on: #1

.forgejo/workflows/ci.yml

@@ -0,0 +1,40 @@
+name: CI
+
+on:
+    push:
+        branches: [main]
+    pull_request:
+        branches: [main]
+    workflow_dispatch:
+
+jobs:
+    check:
+        runs-on: node-24
+        steps:
+            - uses: https://code.forgejo.org/actions/checkout@v4
+            - name: Cache npm dependencies
+              uses: https://code.forgejo.org/actions/cache@v4
+              with:
+                path: ~/.npm
+                key: node-24-${{ hashFiles('**/package-lock.json') }}
+                restore-keys: node-24-
+            - run: npm ci
+            - run: npm run check
+
+    build:
+        needs: check
+        strategy:
+            matrix:
+                node: [22, 24]
+        runs-on: node-${{ matrix.node }}
+        steps:
+            - uses: https://code.forgejo.org/actions/checkout@v4
+            - name: Cache npm dependencies
+              uses: https://code.forgejo.org/actions/cache@v4
+              with:
+                path: ~/.npm
+                key: node-${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}
+                restore-keys: node-${{ matrix.node }}-
+            - run: npm ci
+            - run: npm run build
+            - run: npm test

.github/workflows/ci.yml

@@ -1,31 +0,0 @@
-name: CI
-on:
-    push:
-        branches: [mainline]
-    pull_request:
-        branches: [mainline]
-
-jobs:
-    check:
-        runs-on: ubuntu-latest
-        steps:
-            - uses: actions/checkout@v4
-            - uses: actions/setup-node@v4
-            - run: npm ci
-            - run: npm run check
-
-    build:
-        needs: check
-        strategy:
-            matrix:
-                os: [windows-latest, ubuntu-latest, macos-latest]
-                node: [18, 20, 22]
-        runs-on: ${{ matrix.os }}
-        steps:
-            - uses: actions/checkout@v4
-            - uses: actions/setup-node@v4
-              with:
-                  node-version: ${{ matrix.node }}
-            - run: npm ci
-            - run: npm run build
-            - run: npm test