Update golangci-lint configuration to v2.2.1 format

- Add version field set to "2" for golangci-lint v2.2.1
- Remove formatters (gofmt, gofumpt, goimports) from linters list
- Remove unsupported linters (gosimple, typecheck)
- Simplify usetesting configuration
- Move max-issues settings to proper location in issues section
- Remove timeout field from run section

.golangci.yml

@@ -1,5 +1,6 @@
+version: "2"
+
 run:
-  timeout: 5m
   go: "1.22"
 
 linters:
@@ -14,7 +15,6 @@ linters:
     - mnd              # An analyzer to detect magic numbers
     - lll              # Reports long lines
     - intrange         # intrange is a linter to find places where for loops could make use of an integer range
-    - gofumpt          # Gofumpt checks whether code was gofumpt-ed
     - gochecknoglobals # Check that no global variables exist
 
     # Default/existing linters that are commonly useful
@@ -22,11 +22,7 @@ linters:
     - errcheck
     - staticcheck
     - unused
-    - gosimple
     - ineffassign
-    - typecheck
-    - gofmt
-    - goimports
     - misspell
     - revive
     - gosec
@@ -78,10 +74,11 @@ linters-settings:
   testifylint:
     enable-all: true
 
-  usetesting:
-    strict: true
+  usetesting: {}
 
 issues:
+  max-issues-per-linter: 0
+  max-same-issues: 0
   exclude-rules:
     # Exclude some linters from running on tests files
     - path: _test\.go
@@ -98,7 +95,4 @@ issues:
     # Exclude unused parameter warnings for cobra command signatures
     - text: "parameter '(args|cmd)' seems to be unused"
       linters:
-        - revive
-
-  max-issues-per-linter: 0
-  max-same-issues: 0
+        - revive