chore: bump google.golang.org/grpc from 1.79.1 to 1.79.3

[dependabot]

Bumps google.golang.org/grpc from 1.79.1 to 1.79.3.

Release notes

Sourced from google.golang.org/grpc's releases.

Release 1.79.3

Security

• server: fix an authorization bypass where malformed :path headers (missing the leading slash) could bypass path-based restricted "deny" rules in interceptors like grpc/authz. Any request with a non-canonical path is now immediately rejected with an Unimplemented error. (#8981)

Release 1.79.2

Bug Fixes

• stats: Prevent redundant error logging in health/ORCA producers by skipping stats/tracing processing when no stats handler is configured. (grpc/grpc-go#8874)

Commits

• dda86db Change version to 1.79.3 (#8983)
• 72186f1 grpc: enforce strict path checking for incoming requests on the server (#8981)
• 97ca352 Changing version to 1.79.3-dev (#8954)
• 8902ab6 Change the version to release 1.79.2 (#8947)
• a928670 Cherry-pick #8874 to v1.79.x (#8904)
• 06df363 Change version to 1.79.2-dev (#8903)
• See full diff in compare view

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[mitchnielsen]

TL;DR: Approve. Patch-level security fix for google.golang.org/grpc. Merge promptly.

Details

Dependency

Package	google.golang.org/grpc
From	1.79.1
To	1.79.3
Type	indirect

What changed

1.79.3 (security fix): Server-side authorization bypass where malformed :path headers (missing leading slash) could bypass path-based "deny" rules in interceptors like grpc/authz. Requests with non-canonical paths are now rejected with Unimplemented. (grpc/grpc-go#8981)

1.79.2 (bug fix): Prevents redundant error logging in health/ORCA producers when no stats handler is configured. (grpc/grpc-go#8874)

Diff scope

• go.mod: version bump only (1 line)
• go.sum: hash update only (2 lines)

No application code changes. No new dependencies introduced.

Risk assessment

Factor	Rating
Scope of change	Low
Breaking changes	None (patch release, same minor)
Security relevance	Yes, fixes authz bypass
Compatibility score	Dependabot: compatible

Risk: Low. Patch-level bump for an indirect dependency. Contains a security fix that hardens server-side path validation. No breaking API changes.