bazel: fix incorrect version of @com_github_cncf_xds

[sergiitk]

#30834 was merged before cncf/xds#74, so @com_github_cncf_xds point to commit on the PR branch, and not main.

This PR fixes it by pointing to the commit merged to main.

---

Commit Message:

bazel: fix incorrect version of `@com_github_cncf_xds`

Additional Description:

https://github.com/envoyproxy/envoy/pull/30834 was merged before
https://github.com/cncf/xds/pull/74, so `@com_github_cncf_xds` point
to commit on the PR branch, and not `main`.

This PR fixes it by pointing to the commit merged to `main`.

Risk Level: low
Testing: do_ci.sh
Docs Changes: no
Release Notes: no

[repokitteh-read-only]

CC @envoyproxy/dependency-shepherds: Your approval is needed for changes made to (bazel/.*repos.*\.bzl)|(bazel/dependency_imports\.bzl)|(api/bazel/.*\.bzl)|(.*/requirements\.txt)|(.*\.patch).
envoyproxy/dependency-shepherds assignee is @moderation

🐱

Caused by: #30930 was opened by sergiitk.

see: more, trace.

[sergiitk]

FYI @yanavlasov

[sergiitk]

@moderation could you please merge this one?