revert: "ci: cache SPM packages and add timeout in release-publish build-kits (#719)"

[nickolas-dimitrakas]

Summary

Reverts #719.

• Removes SPM package caching step from the build-kits job in release-publish.yml
• Removes -derivedDataPath and -packageCachePath flags from xcodebuild archive commands

Test plan

• CI passes on this PR
• release-publish workflow runs without the caching steps

🤖 Generated with Claude Code

[cursor]

PR Summary

Medium Risk
Changes the release-publish workflow’s kit build process, which could impact release build performance and reliability (e.g., longer builds or different dependency resolution behavior). No product/runtime code is modified.

Overview
Reverts the release-publish.yml build-kits job back to building kits without explicit Swift Package Manager caching or pre-resolving dependencies.

Removes the actions/cache step for DerivedData/SourcePackages, drops the xcodebuild -resolvePackageDependencies step, and eliminates -derivedDataPath/-packageCachePath usage from the kit xcodebuild archive commands.

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[github-actions]

📦 SDK Size Impact Report

Measures how much the SDK adds to an app's size (with-SDK minus without-SDK).

Metric	Target Branch	This PR	Change
App Bundle Impact	1.75 MB	1.75 MB	+N/A
Executable Impact	848 bytes	848 bytes	+N/A
XCFramework Size	6.38 MB	6.38 MB	+N/A

➡️ SDK size impact change is minimal.

Raw measurements

Target branch (main):

{"baseline_app_size_kb":84,"baseline_executable_size_bytes":75464,"with_sdk_app_size_kb":1880,"with_sdk_executable_size_bytes":76312,"sdk_impact_kb":1796,"sdk_executable_impact_bytes":848,"xcframework_size_kb":6532}

This PR:

{"baseline_app_size_kb":84,"baseline_executable_size_bytes":75464,"with_sdk_app_size_kb":1880,"with_sdk_executable_size_bytes":76312,"sdk_impact_kb":1796,"sdk_executable_impact_bytes":848,"xcframework_size_kb":6532}