Bump Go version to 1.24.6 and golangci-lint to v2.6.0

Updates:
- Update Go version from 1.23.0 to 1.24.6
- Remove toolchain directive
- Update golangci-lint from v1.64.7 to v2.6.0
- Update .golangci.yml to version 2 format
- Update mattermost-govet to 7d8db289e508999dfcac47b97c9490a0fec12d66
- Update CI workflow golang-version to 1.24.6

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: wiggin77

.github/workflows/ci.yml

@@ -18,4 +18,4 @@ jobs:
     uses: mattermost/actions-workflows/.github/workflows/plugin-ci.yml@main
     secrets: inherit
     with:
-      golang-version: "1.23"
+      golang-version: "1.24.6"

.golangci.yml

@@ -1,3 +1,5 @@
+version: 2
+
 run:
   timeout: 5m
   modules-download-mode: readonly
@@ -16,29 +18,92 @@ linters-settings:
       - fieldalignment
   misspell:
     locale: US
+  revive:
 
 linters:
   disable-all: true
   enable:
     - bodyclose
-    # - errcheck
-    # - goconst
+    - errcheck
     - gocritic
-    - gofmt
-    - goimports
-    # - gosec
-    - gosimple
+    - gosec
     - govet
     - ineffassign
-    # - misspell
+    - misspell
     - nakedret
     - revive
     - staticcheck
-    - stylecheck
-    - typecheck
     - unconvert
     - unused
     - whitespace
+  exclusions:
+    rules:
+      - linters:
+          - revive
+        text: var-naming|error-naming|exported|increment-decrement|error-strings|if-return|unused-parameter|blank-imports|empty-block|package-comments
+      - linters:
+          - errcheck
+        text: Error return value
+      - linters:
+          - staticcheck
+        text: SA1019
+      - linters:
+          - staticcheck
+        text: ST1023
+      - linters:
+          - staticcheck
+        text: ST1012
+      - linters:
+          - staticcheck
+        text: ST1005
+      - linters:
+          - staticcheck
+        text: QF1011
+      - linters:
+          - staticcheck
+        text: QF1001
+      - linters:
+          - staticcheck
+        text: QF1003
+      - linters:
+          - staticcheck
+        text: QF1012
+      - linters:
+          - staticcheck
+        text: QT1019
+      - linters:
+          - staticcheck
+        text: QF1008
+      - linters:
+          - staticcheck
+        text: QF1004
+      - linters:
+          - staticcheck
+        text: ST1019
+      - linters:
+          - staticcheck
+        text: QF1006
+      - linters:
+          - staticcheck
+        text: QF1002
+      - linters:
+          - staticcheck
+        text: QF1007
+      - linters:
+          - gosec
+        text: G104
+      - linters:
+          - gosec
+        text: G304
+      - linters:
+          - gosec
+        text: G301
+
+formatters:
+  disable-all: true
+  enable:
+    - gofmt
+    - goimports
 
 issues:
   exclude-rules:

Makefile

@@ -158,9 +158,9 @@ apply:
 ## Install go tools
 install-go-tools:
 	@echo Installing go tools
-	$(GO) install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.64.7
+	$(GO) install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.6.0
 	$(GO) install gotest.tools/[email protected]
-	$(GO) install github.com/mattermost/mattermost-govet/v2@3f08281c344327ac09364f196b15f9a81c7eff08
+	$(GO) install github.com/mattermost/mattermost-govet/v2@7d8db289e508999dfcac47b97c9490a0fec12d66
 
 ## Runs eslint and golangci-lint
 .PHONY: check-style

go.mod

@@ -1,8 +1,6 @@
 module github.com/mattermost/mattermost-plugin-github
 
-go 1.23.0
-
-toolchain go1.23.8
+go 1.24.6
 
 require (
 	github.com/Masterminds/sprig/v3 v3.2.2