ci: refactor GitHub actions and update GolangCI configuration

- Remove the formatting step from the GitHub action workflow
- Disable the `fiximports` setting in the GolangCI configuration

Signed-off-by: appleboy <appleboy.tw@gmail.com>

.github/workflows/gin.yml

@@ -75,7 +75,3 @@ jobs:
         uses: codecov/codecov-action@v4
         with:
           flags: ${{ matrix.os }},go-${{ matrix.go }},${{ matrix.test-tags }}
-
-      - name: Format
-        if: matrix.go-version == '1.22.x'
-        run: diff -u <(echo -n) <(gofmt -d .)

.golangci.yml

@@ -39,7 +39,6 @@ linters-settings:
   perfsprint:
     err-error: true
     errorf: true
-    fiximports: true
     int-conversion: true
     sprintf1: true
     strconcat: true