Removed vendored resolv

[hsbt]

What was the end-user or developer problem that led to this PR?

From #9277

We should use resolv-0.7.0 that is working without fiddle dependency. But resolv-0.7.0 has C extension, so we couldn't vendor that at rubygems.

What is your fix for the problem, implemented in this PR?

Removed vendored resolv. We should rely bundled resolv as default gems.

Make sure the following tasks are checked

• Describe the problem / feature
• Write tests for features and bug fixes
• Write code to solve the problem
• Make sure you follow the current code style and write meaningful commit messages without tags

[Copilot]

Pull request overview

This PR removes the vendored resolv library (version 0.6.2) from RubyGems and switches to relying on the bundled resolv-0.7.0 as a default gem. This addresses issue #9277 where MSWindows builds were broken due to a circular dependency: the vendored resolv library required win32-registry, which depends on fiddle, creating an unresolvable bootstrap problem.

Changes:

• Removed vendored resolv-0.6.2 dependency from gem vendor configuration
• Deleted vendored resolv library code and license files
• Updated net-http to use standard resolv library instead of vendored version

Reviewed changes

Copilot reviewed 3 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tool/bundler/vendor_gems.rb	Removed resolv gem entry from vendoring configuration
tool/bundler/vendor_gems.rb.lock	Removed resolv gem from lockfile (gem list, dependencies, checksums)
tool/automatiek/vendor.rb	Removed VendoredGem configuration for resolv including dependencies and patch references
lib/rubygems/vendor/resolv/lib/resolv.rb	Deleted entire vendored resolv library implementation (3,483 lines)
lib/rubygems/vendor/resolv/COPYING	Deleted vendored resolv license file
lib/rubygems/vendor/net-http/lib/net/http.rb	Changed from vendored resolv (require_relative, Gem::Resolv) to standard library (require 'resolv', Resolv)

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