Update dependency googletest to v1.18.0.bcr.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
googletest	bazel_dep	minor	1.17.0.bcr.2 → 1.18.0.bcr.1

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • "before 8am on Monday"
• Automerge
  • At any time (no schedule defined)

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

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update 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 86.51%. Comparing base (fc89acb) to head (aebc09f).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4601      +/-   ##
==========================================
- Coverage   86.51%   86.51%   -0.00%     
==========================================
  Files         525      525              
  Lines       20464    20464              
==========================================
- Hits        17703    17702       -1     
- Misses       2761     2762       +1     

see 1 file with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[marcalff]

Fails in bazel 8.5.0:

ERROR: Error computing the main repository mapping: googletest@1.18.0.bcr.1 depends on abseil-cpp@20260526.0 with compatibility level 0, but depends on abseil-cpp@20260107.1 with compatibility level 1 which is different

[marcalff]

Blocked by:

• [BAZEL] use default bazel version #4606

[marcalff]

Blocked by:

• [BUILD] Build break with bazel for configuration examples #4608