simplify lychee setup and run without docker

.github/workflows/reusable-link-check.yml

@@ -11,8 +11,18 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          fetch-depth: 0 # needed for merge-base used in lint:links-in-modified-files
 
-      - name: Link check
+      - uses: jdx/mise-action@e3d7b8d67a7958d1207f6ed871e83b1ea780e7b0 # v3.3.1
+
+      - name: Link check - relative links (all files)
+        if: github.event_name == 'pull_request'
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+        run: mise run lint:local-links
+
+      - name: Link check (modified files only)
         env:
           GITHUB_TOKEN: ${{ github.token }}
-        run: ./.github/scripts/link-check.sh
+        run: mise run lint:links-in-modified-files --base origin/${{ github.base_ref }} --head ${{ github.event.pull_request.head.sha }} --event ${{ github.event_name }}

mise.toml

@@ -0,0 +1,21 @@
+[tools]
+lychee = "0.20.1"
+
+[settings]
+# Only install tools explicitly defined in the [tools] section above
+idiomatic_version_file_enable_tools = []
+
+# Windows configuration for file-based tasks
+# Based on: https://github.com/jdx/mise/discussions/4461
+windows_executable_extensions = ["sh"]
+windows_default_file_shell_args = "bash"
+use_file_shell_for_executable_tasks = true
+
+[tasks."lint:links"]
+file = "https://raw.githubusercontent.com/open-telemetry/opentelemetry-java-contrib/refs/heads/main/.mise/tasks/lint/links.sh"
+
+[tasks."lint:local-links"]
+file = "https://raw.githubusercontent.com/open-telemetry/opentelemetry-java-contrib/refs/heads/main/.mise/tasks/lint/local-links.sh"
+
+[tasks."lint:links-in-modified-files"]
+file = "https://raw.githubusercontent.com/open-telemetry/opentelemetry-java-contrib/refs/heads/main/.mise/tasks/lint/links-in-modified-files.sh"