CI: Bump symsrv-scripts to v1.1.1

[summeroff]

Description

symsrvRef default v1.1.0 → v1.1.1. One line.

Motivation and Context

Picks up streamlabs/symsrv-scripts#4 and #5:

• main.bat used a drive-relative cd, which would run the scripts from the wrong directory on a runner whose workspace is on another drive
• The submodule commit lookup hit api.github.com anonymously with no error handling; a rate-limit response aborted the whole symbol upload. It now sends a token and degrades to following the branch instead
• Scratch folders no longer land inside the checkout
• symsrv-scripts now has CI (parse under Windows PowerShell 5.1 + PSScriptAnalyzer)

No interface change — every parameter behaves as in v1.1.0.

How Has This Been Tested?

Not exercised here yet; the symbols job only runs on tags. v1.1.1 was tested in its own repo (end-to-end run, parse checks, analyzer clean) and the pin mechanism itself was verified on tag 32.1.1semsrv2, where the log showed symsrv-scripts resolving the pinned tag rather than its default branch.

Worth a test tag before the next release if you want it confirmed in place.

Types of changes

• Tweak (non-breaking change to improve existing functionality)

Checklist:

• My code has been run through clang-format. — n/a, CI configuration only
• My code is not on the streamlabs branch.
• The code has been tested. — verified upstream; the tag path here needs a test tag
• All commit messages are properly formatted and commits squashed where appropriate.