fix: fix the workflow to only run on main branch

.forgejo/workflows/check_and_lint.yaml

@@ -1,3 +1,5 @@
+name: Check code passes formatting and lint rules
+
 on: [push]
 jobs:
   check:

.forgejo/workflows/release.yaml

@@ -1,4 +1,9 @@
-on: [push]
+name: Build and create binary artifact
+
+on:
+  push:
+    branches:
+      - main
 jobs:
   release:
     runs-on: docker
@@ -8,5 +13,5 @@ jobs:
       - run: cargo build --release
       - uses: actions/upload-artifact@v3
         with:
-          name: binary 
-          path: target/release/forgejo_automate 
+          name: binary
+          path: target/release/forgejo_automate