ci: optimize GitHub Actions workflows

[jongio]

Changes

• Enable Go module caching - Replace cache: false with cache: true and add cache-dependency-path in all setup-go steps
• Add concurrency groups - Prevent duplicate workflow runs (ci, pr-build, release, update-azd-core)
• Add path filters to CI - Only trigger CI on changes to cli/** or the workflow file itself
• Remove redundant Go bootstrap - Replace the multi-step bootstrap pattern with a single setup-go using go-version from env
• Add job timeouts - Add timeout-minutes to all jobs to prevent runaway builds
• Cache Go tools - Add actions/cache for ~/go/bin in preflight jobs
• Remove duplicate lint job - Merge the standalone lint job in release.yml into the existing preflight job
• Remove redundant go mod download - The setup-go cache handles dependency restoration

[github-actions]

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[github-actions]

🚀 Test This PR

A preview build (0.4.3-pr16) is ready for testing!

One-Line Install (Recommended)

PowerShell (Windows):

iex "& { $(irm https://raw.githubusercontent.com/jongio/azd-rest/main/scripts/install-pr.ps1) } -PrNumber 16 -Version 0.4.3-pr16"

Bash (macOS/Linux):

curl -fsSL https://raw.githubusercontent.com/jongio/azd-rest/main/scripts/install-pr.sh | bash -s 16 0.4.3-pr16

Uninstall

PowerShell (Windows):

iex "& { $(irm https://raw.githubusercontent.com/jongio/azd-rest/main/scripts/uninstall-pr.ps1) } -PrNumber 16"

Bash (macOS/Linux):

curl -fsSL https://raw.githubusercontent.com/jongio/azd-rest/main/scripts/uninstall-pr.sh | bash -s 16

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Build Info:

• Version: 0.4.3-pr16
• Commit: 596762b
• Release: View pre-release