fix(deps): update module google.golang.org/grpc to v1.68.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
google.golang.org/grpc	v1.68.0 -> v1.68.1

---

Release Notes

grpc/grpc-go (google.golang.org/grpc)

v1.68.1: Release 1.68.1

Compare Source

Bug Fixes

• credentials/alts: avoid SRV and TXT lookups for handshaker service to work around hangs caused by buggy versions of systemd-resolved. (#​7861)

Dependencies

• Relax minimum Go version requirement from go1.22.7 to go1.22. (#​7831)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.0%. Comparing base (ff4a4ae) to head (ebe7b15).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #6401   +/-   ##
=====================================
  Coverage   67.0%   67.0%           
=====================================
  Files        193     193           
  Lines      15660   15660           
=====================================
  Hits       10494   10494           
  Misses      4876    4876           
  Partials     290     290