chore: improve linting, testing, and GitHub Actions setup (#3583)

- Update golangci-lint version from `v1.48.0` to `v1.52.2`
- Remove Gitter notifications from GitHub Actions workflow
- Add gosec linter settings and include specific rules
- Exclude revive linter for test files
- Remove Gitter badge from README.md
- Delete codecov.yml file
- Change function parameter name in fs.go
- Remove unused parameter in defaultHandleRecovery function

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

.github/workflows/gin.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Setup golangci-lint
         uses: golangci/golangci-lint-action@v3.4.0
         with:
-          version: v1.48.0
+          version: v1.52.2
           args: --verbose
   test:
     needs: lint
@@ -75,17 +75,3 @@ jobs:
       - name: Format
         if: matrix.go-version == '1.20.x'
         run: diff -u <(echo -n) <(gofmt -d .)
-  notification-gitter:
-    needs: test
-    runs-on: ubuntu-latest
-    steps:
-      - name: Notification failure message
-        if: failure()
-        run: |
-          PR_OR_COMPARE="$(if [ "${{ github.event.pull_request }}" != "" ]; then echo "${{ github.event.pull_request.html_url }}"; else echo "${{ github.event.compare }}"; fi)"
-          curl -d message="GitHub Actions [$GITHUB_REPOSITORY]($PR_OR_COMPARE) ($GITHUB_REF) [normal]($GITHUB_API_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID) ($GITHUB_RUN_NUMBER)" -d level=error https://webhooks.gitter.im/e/7f95bf605c4d356372f4
-      - name: Notification success message
-        if: success()
-        run: |
-          PR_OR_COMPARE="$(if [ "${{ github.event.pull_request }}" != "" ]; then echo "${{ github.event.pull_request.html_url }}"; else echo "${{ github.event.compare }}"; fi)"
-          curl -d message="GitHub Actions [$GITHUB_REPOSITORY]($PR_OR_COMPARE) ($GITHUB_REF) [normal]($GITHUB_API_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID) ($GITHUB_RUN_NUMBER)" https://webhooks.gitter.im/e/7f95bf605c4d356372f4