Prefer gitea.com-hosted actions where available

Some of the newer versions of the github.com versions aren't compatible
with gitea's fork of act_runner.

.gitea/workflows/ci.yaml

@@ -9,7 +9,7 @@ jobs:
     name: CI
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: https://gitea.com/actions/checkout@v3
       - uses: https://github.com/actions-rs/toolchain@v1
         with:
           toolchain: stable

.gitea/workflows/release.yaml

@@ -8,7 +8,7 @@ jobs:
     name: Publish to crates.io
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: https://gitea.com/actions/checkout@v3
       - uses: https://github.com/actions-rs/toolchain@v1
         with:
           toolchain: stable
@@ -19,7 +19,7 @@ jobs:
     name: Publish to Docker Hub
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: https://gitea.com/actions/checkout@v3
       - name: docker meta
         id: meta
         uses: https://github.com/docker/metadata-action@v4
@@ -30,13 +30,13 @@ jobs:
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
             type=semver,pattern={{major}}
-      - uses: docker/setup-qemu-action@v3
-      - uses: docker/setup-buildx-action@v3
-      - uses: docker/login-action@v3
+      - uses: https://gitea.com/docker/setup-qemu-action@v2
+      - uses: https://gitea.com/docker/setup-buildx-action@v2
+      - uses: https://gitea.com/docker/login-action@v2
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
-      - uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+      - uses: https://gitea.com/docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
         with:
           context: .
           push: true