chore: update golangci-lint configuration and CI workflow version

- Upgraded golangci-lint version from v1.64.8 to v2.1.6 for enhanced linting capabilities.
- Updated configuration to remove the lll linter and adjusted related settings for improved code quality checks.
- Streamlined issue exclusions to better align with current project needs.

.github/workflows/ci.yml

@@ -78,7 +78,7 @@ jobs:
       - name: Run golangci-lint
         uses: golangci/golangci-lint-action@4afd733a84b1f43292c63897423277bb7f4313a9 # v6.5.0
         with:
-          version: v1.64.8
+          version: v2.1.6
           args: --timeout=5m
 
   # Stage 3: Test with Coverage (depends on lint)

.golangci.yml

@@ -1,3 +1,5 @@
+version: "2"
+
 run:
   timeout: 5m
   tests: true
@@ -24,7 +26,6 @@ linters:
     - dupl
     - funlen
     - gocognit
-    - lll
     - nakedret
     - prealloc
     - stylecheck
@@ -56,9 +57,6 @@ linters-settings:
     lines: 120
     statements: 60
   
-  lll:
-    line-length: 150
-  
   gocritic:
     enabled-tags:
       - diagnostic
@@ -106,11 +104,6 @@ issues:
       linters:
         - errcheck
     
-    # Allow long lines in test files
-    - path: _test\.go
-      linters:
-        - lll
-    
     # Exclude dupl from ONVIF API files - similar patterns are expected
     - path: (media|device|ptz|imaging|device_security|device_additional)\.go
       linters:
@@ -123,7 +116,6 @@ issues:
   
   max-issues-per-linter: 50
   max-same-issues: 10
-  exclude-use-default: false
 
 output:
   print-issued-lines: true