Bump golangci/golangci-lint-action from 6 to 7 (#15)

* Bump golangci/golangci-lint-action from 6 to 7

Bumps [golangci/golangci-lint-action](https://github.com/golangci/golangci-lint-action) from 6 to 7.
- [Release notes](https://github.com/golangci/golangci-lint-action/releases)
- [Commits](golangci/golangci-lint-action@v6...v7)

---
updated-dependencies:
- dependency-name: golangci/golangci-lint-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* Bump golangci-lint to version 2 config

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Peter Evans <18365890+peter-evans@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/lint.yml

@@ -23,7 +23,6 @@ jobs:
           go-version: 1.17
 
       - name: lint
-        uses: golangci/golangci-lint-action@v6
+        uses: golangci/golangci-lint-action@v7
         with:
-          skip-go-installation: true
           args: --timeout=5m

.golangci.yml

@@ -1,11 +1,14 @@
+version: "2"
 linters:
   enable:
     - gocritic
     - godot
-    - gofumpt
     - prealloc
     - predeclared
     - revive
     - thelper
     - unconvert
     - unparam
+formatters:
+  enable:
+    - gofumpt

lcs.go

@@ -46,6 +46,7 @@ func LCS(a, b []string) [][2]int {
 }
 
 // max returns the maximum of two integers.
+// nolint:predeclared
 func max(a, b int) int {
 	if a > b {
 		return a

unified.go

@@ -97,7 +97,7 @@ func makeHunks(diffs []DiffLine, precontext, postcontext int) []Hunk {
 	// Aggregate blocks of modified and unmodified diff lines, creating
 	// or updating hunks after each block.
 	var block Hunk
-	modifiedLines := 0 //nolint:ifshort
+	modifiedLines := 0
 	srcLineNum, dstLineNum := 0, 0
 	for _, l := range diffs {
 		if len(block.Diffs) == 0 ||
@@ -143,6 +143,7 @@ func makeHunks(diffs []DiffLine, precontext, postcontext int) []Hunk {
 }
 
 // min returns the minimum of two integers.
+// nolint:predeclared
 func min(a, b int) int {
 	if a < b {
 		return a