Make it easier to run lychee locally

[Copilot]

This PR applies the changes from open-telemetry/opentelemetry-java-instrumentation#14155 to make it easier to run lychee link checking locally.

Changes made:

• Added .github/scripts/dependencies.dockerfile - Contains the lychee Docker image version that Renovate can auto-update
• Added .github/scripts/link-check.sh - A script that runs lychee locally using Docker, eliminating the need to install lychee directly on the local machine
• Added .lychee.toml - Configuration file for lychee with appropriate excludes and settings
• Added .github/workflows/reusable-link-check.yml - New workflow that uses the custom script instead of the lychee-action
• Removed .github/workflows/reusable-markdown-link-check.yml - Old workflow that used lychee-action
• Updated .github/workflows/build.yml - Changed references from markdown-link-check to link-check

Benefits:

1. Easier local development - Developers can now run ./github/scripts/link-check.sh locally without installing lychee
2. Consistent environment - Uses the same Docker image version locally and in CI
3. Auto-updates - Renovate can automatically update the lychee version in the dependencies.dockerfile
4. Better configuration - Uses a dedicated .lychee.toml config file instead of inline arguments

To run link checking locally, developers just need Docker and can execute:

./github/scripts/link-check.sh

Fixes #31.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

• activemq.apache.org
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• api.scorecard.dev
• app.fossa.com
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• cassandra.apache.org
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• central.sonatype.com
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• cloud-native.slack.com
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• cloud.google.com
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• contrib.rocks
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• developer.mend.io
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• docs.aws.amazon.com
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• docs.cloudfoundry.org
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• docs.groovy-lang.org
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• docs.jboss.org
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• docs.oracle.com
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• en.wikipedia.org
• groovy-lang.org
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• hadoop.apache.org
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• hbase.apache.org
• img.shields.io
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• kafka.apache.org
• opentelemetry.io
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• plugins.jenkins.io
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• scorecard.dev
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• semver.org
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• solr.apache.org
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)
• www.eclipse.org
• www.jaegertracing.io
  • Triggering command: /usr/local/bin/lychee --verbose --config .lychee.toml . (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to my firewall allow list

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