Update gRPC on Flyte V1 to fix CVEs

[Sovietaced]

Why are the changes needed?

Fixes some CVEs in Flyte V1

• CVE-2026-0994
• CVE-2026-84304

What changes were proposed in this pull request?

Update gRPC to the latest version which is not affected.

How was this patch tested?

Existing tests

Labels

Please add one or more of the following labels to categorize your PR:

• added: For new features.
• changed: For changes in existing functionality.
• deprecated: For soon-to-be-removed features.
• removed: For features being removed.
• fixed: For any bug fixed.
• security: In case of vulnerabilities

This is important to improve the readability of release notes.

Setup process

Screenshots

Check all the applicable boxes

• I updated the documentation accordingly.
• All new and existing tests passed.
• All commits are signed-off.

Related PRs

Stack

If you do use git town to manage PR Stacks, the stack relevant to this PR
will show below. Otherwise, you can ignore this section.

Docs link

[codecov]

Codecov Report

❌ Patch coverage is 0% with 22 lines in your changes missing coverage. Please review.
✅ Project coverage is 57.29%. Comparing base (faed21b) to head (bfb271a).

Files with missing lines	Patch %	Lines
datacatalog/pkg/rpc/datacatalogservice/service.go	0.00%	8 Missing ⚠️
flytepropeller/events/admin_eventsink.go	0.00%	6 Missing ⚠️
flyteadmin/pkg/server/service.go	0.00%	4 Missing ⚠️
...ontroller/nodes/catalog/datacatalog/datacatalog.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7973      +/-   ##
==========================================
+ Coverage   57.27%   57.29%   +0.01%     
==========================================
  Files         931      931              
  Lines       58313    58305       -8     
==========================================
+ Hits        33401    33406       +5     
+ Misses      21854    21842      -12     
+ Partials     3058     3057       -1     

Flag	Coverage Δ
unittests-datacatalog	53.62% <0.00%> (+0.11%)	⬆️
unittests-flyteadmin	53.24% <0.00%> (+<0.01%)	⬆️
unittests-flytecopilot	48.05% <ø> (ø)
unittests-flytectl	64.11% <ø> (ø)
unittests-flyteidl	76.63% <ø> (ø)
unittests-flyteplugins	60.45% <ø> (ø)
unittests-flytepropeller	53.84% <0.00%> (+0.03%)	⬆️
unittests-flytestdlib	64.41% <ø> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.