[Draft]Upgrade relenv from 0.22.14 to 0.22.22

[charzl]

Summary

relenv 0.22.14 (currently pinned as relenv_version in cicd/shared-gh-workflows-context.yml and as an explicit relenv-version override in ci.yml/nightly.yml/staging.yml/scheduled.yml) monkeypatches pip's InstallRequirement.install() with a hardcoded wrapper signature (branching on argument count: 7/8/9/other).

When pip itself adds a new parameter to install()'s real signature -- most recently script_executable in pip 26.2 -- and pip's own internal caller (install_given_reqs()) starts passing it, that call lands on relenv's wrapper instead (since relenv replaced the method), whose hardcoded signature doesn't know about the new parameter:

TypeError: InstallRequirement.install() got an unexpected keyword argument 'script_executable'

This is what broke CI Deps on #70099 across all six platforms (see #70107 for the immediate mitigation -- pinning pip to the version relenv 0.22.14 was tested against for one specific unconstrained call site).

Root cause fix

relenv 0.22.18 rewrote this wrapper to introspect pip's actual install() signature at patch time (inspect.signature + sig.bind_partial) and forward whatever arguments it finds, instead of assuming a fixed shape. Straight from relenv's own source (0.22.22):

Ensure installs honor the TARGET home directory, staying compatible with whatever shape pip's InstallRequirement.install currently has (pip has changed this signature several times across releases, most recently adding script_executable in pip 26.2).

This PR bumps to the latest available release, 0.22.22, which includes this fix plus incidental improvements since 0.22.14 -- notably a fix for onedir entry points on macOS clobbering the caller's cwd when resolving symlinks (relenv#293).

Verification

Downloaded and diffed both sdists directly (0.22.14 vs 0.22.22): only relenv/{common,runtime,pyversions,python-versions.json} differ. All changes are additive -- new supported Python patch versions, a build-metadata platform-tag fix, the introspection-based install wrapper, and the macOS cwd fix. No removed functionality.

Change scope

relenv_version in cicd/shared-gh-workflows-context.yml is the single source of truth tools/pkg/build.py falls back to when no explicit version is passed. The explicit relenv-version: "0.22.14" overrides in ci.yml/nightly.yml/staging.yml/scheduled.yml (12 occurrences) are rendered from .github/workflows/templates/*.yml.jinja -- these were regenerated via tools pre-commit workflows generate-workflows rather than hand-edited, so they stay in sync with the template source instead of drifting from it.

Test plan

• CI Deps jobs pass on this PR across all platforms.
• Onedir build/package jobs (which use the pinned relenv-version explicitly) complete successfully with 0.22.22.

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