PBM - Remove vendor

[JiriCtvrtka]

PR to try remove vendor folder and use modules.

[it-percona-cla]

All committers have signed the CLA.

[Copilot]

Pull Request Overview

This PR removes the vendor directory approach and migrates to using Go modules for dependency management. The change modernizes the build process by leveraging Go's module system instead of vendoring dependencies.

• Updated Go version from 1.22 to 1.23.0 with toolchain 1.23.4
• Changed build flags from -mod=vendor to -mod=mod in Makefile
• Removed vendor directory exclusions from GitHub workflow files
• Updated various golang.org/x dependencies to newer versions

Reviewed Changes

Copilot reviewed 3 out of 4188 changed files in this pull request and generated no comments.

File	Description
go.mod	Updates Go version and dependency versions to support module-based builds
Makefile	Changes build flags to use module mode instead of vendor mode
.github/workflows/reviewdog.yml	Removes vendor directory exclusions from linting workflows

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