Disable link checker from failing builds (opensearch-project#10832)

Changed the lychee link checker workflow to report broken links without
failing the build. The checker will still run and display warnings for
inaccessible URLs, but won't block CI/CD pipelines when external sites
are temporarily unavailable.

Signed-off-by: Daniel Rowe <[email protected]>

Author: d-buckner

.github/workflows/links_checker.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Lychee Link Checker
         uses: lycheeverse/lychee-action@v1
         with:
-          fail: true
+          fail: false
           args: --accept=200,403,429 --base . --retry-wait-time=15 --max-retries=5 --exclude-path cypress/fixtures --exclude-path src/plugins/explore/public/components/data_table/data_table.mocks.ts "**/*.html" "**/*.md" "**/*.txt" "**/*.json" "**/*.js" "**/*.ts" "**/*.tsx"
         env:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}