fix: resolve CI failures in linter and test workflows

- Replace deprecated linters (deadcode, golint, maligned, structcheck, varcheck)
  with modern equivalents (unused, revive)
- Add missing setup-go action in CI workflow to fix 'go: command not found' error
- Update actions/checkout from v1 to v4 for better compatibility

These deprecated linters have been abandoned by maintainers since v1.38-v1.49
and are replaced by actively maintained alternatives with equivalent functionality.

Signed-off-by: Sukuna0007Abhi <appsonly310@gmail.com>

Author: Sukuna0007Abhi

.github/workflows/ci.yml

@@ -13,9 +13,13 @@ jobs:
         os: [macos-latest, ubuntu-latest]
     steps:
     - name: Checkout code
-      uses: actions/checkout@v1
+      uses: actions/checkout@v4
       with:
         fetch-depth: 1
+    - name: Setup Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.24'
     - name: Get dependencies
       run: go get -v -t -d ./...
     - name: Build project

.golangci.yml

@@ -26,38 +26,32 @@ linters-settings:
   gofmt:
     simplify: false
   goimports:
-  golint:
+  revive:
     min-confidence: 0
   govet:
     check-shadowing: true
   lll:
     line-length: 140
-  maligned:
-    suggest-new: true
   misspell:
     locale: US
 
 linters:
   disable-all: true
   enable:
-    - deadcode
     - errcheck
     - goconst
     - gocyclo
     - gofmt
     - goimports
-    - golint
+    - revive
     - gosec
     - govet
     - ineffassign
-    - maligned
     - misspell
     - staticcheck
-    - structcheck
     - typecheck
     - unconvert
     - unused
-    - varcheck
 
 
 issues: