ci: update go version

.github/workflows/main.yml

@@ -21,7 +21,7 @@ jobs:
     - name: setup Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.20.x
+        go-version: 1.21.x
 
     - uses: maxim-lobanov/setup-xcode@v1
       with:
@@ -30,7 +30,7 @@ jobs:
     - name: install deps
       run: |
         bash install_dependency.sh
-    
+
     - name: update dev build version
       if: ${{!startsWith(github.ref, 'refs/tags/')}}
       run: |
@@ -38,7 +38,7 @@ jobs:
         bundle exec fastlane run increment_build_number_in_plist build_number:"${tag}"  scheme:"ClashX"
         bundle exec fastlane run increment_version_number_in_plist version_number:"${tag}"  scheme:"ClashX"
         bundle exec fastlane run set_info_plist_value path:ClashX/Info.plist key:BETA value:true
-        
+
     - name: update tag build version
       if: startsWith(github.ref, 'refs/tags/')
       run: |
@@ -72,7 +72,7 @@ jobs:
         create-dmg ClashX.app
         mv ClashX*.dmg ClashX.dmg
 
-    - name: notarize 
+    - name: notarize
       if: startsWith(github.ref, 'refs/tags/')  || contains(github.event.head_commit.message, '[beta]')
       env:
         FASTLANE_PASSWORD: ${{ secrets.FASTLANE_PASSWORD }}
@@ -81,7 +81,7 @@ jobs:
       run: |
         bundle exec fastlane run notarize package:"./ClashX.dmg" bundle_id:"com.west2online.ClashX" asc_provider:MEWHFZ92DY
 
-    - name: upload to appcenter 
+    - name: upload to appcenter
       if: startsWith(github.ref, 'refs/tags/') || contains(github.event.head_commit.message, '[beta]')
       env:
         APPCENTER_DISTRIBUTE_UPLOAD_BUILD_ONLY: true