fix: resolve macOS test link failure and update lint rules (#2429)

* chore(ci): fix macOS test linking and tune linter exclusions

* fix: resolve macOS linking errors and suppress unused staticcheck nolint warnings in tests

* fix(ci): restrict macOS link workaround to Go < 1.24

.github/workflows/test.yml

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a7bf8c4..68b1ab0 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -71,6 +71,11 @@
         - 24
     name: '${{ matrix.platform }} | 1.${{ matrix.go }}.x'
     runs-on: ${{ matrix.platform }}-latest
+    # macOS runner environments require compiled binaries to contain an LC_UUID load command.
+    # Go 1.24+ natively resolves this by writing LC_UUID in Go's internal linker.
+    # For Go < 1.24, we pass -ldflags=-linkmode=external on macOS to force external linking via the system linker.
+    env:
+      GO_TEST_FLAGS: ${{ matrix.platform == 'macOS' && matrix.go < 24 && '-ldflags=-linkmode=external' || '' }}
     steps:
 
     - uses: actions/checkout@v4

.golangci.yml

diff --git a/.golangci.yml b/.golangci.yml
index 104dc24..25967a9 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -57,6 +57,21 @@
       - common-false-positives
       - legacy
       - std-error-handling
+    warn-unused: true
+    rules:
+      - path: '_test\.go'
+        linters:
+          - goconst
+      - linters:
+          - goconst
+        text: 'string `(true|bash|zsh|fish|powershell)`'
+      # Some Go/staticcheck versions in the test matrix don't trigger staticcheck warnings
+      # on type assertions/LHS variables in test files, while others do.
+      # To avoid build failures on both sides, we allow unused staticcheck nolints in test files.
+      - path: '_test\.go'
+        linters:
+          - nolintlint
+        text: 'directive `//nolint:staticcheck` is unused'
   settings:
     govet:
       # Disable buildtag check to allow dual build tag syntax (both //go:build and // +build).

Makefile

diff --git a/Makefile b/Makefile
index 0da8d7a..c18896f 100644
--- a/Makefile
+++ b/Makefile
@@ -21,11 +21,11 @@
 
 test: install_deps
 	$(info ******************** running tests ********************)
-	go test -v ./...
+	go test -v $(GO_TEST_FLAGS) ./...
 
 richtest: install_deps
 	$(info ******************** running tests with kyoh86/richgo ********************)
-	richgo test -v ./...
+	richgo test -v $(GO_TEST_FLAGS) ./...
 
 install_deps:
 	$(info ******************** downloading dependencies ********************)