chore(deps): update sourcegraph docker images to v6.3.0

[renovate]

This PR contains the following updates:

Package	Update	Change
index.docker.io/sourcegraph/blobstore (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/caddy (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/cadvisor (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/frontend (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/gitserver (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/indexed-searcher (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/jaeger-all-in-one (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/migrator (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/node-exporter (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/opentelemetry-collector (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/postgres_exporter (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/postgresql-16 (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/postgresql-16-codeinsights (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/precise-code-intel-worker (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/redis-cache	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/redis-store (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/search-indexer (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/searcher (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/symbols (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/syntactic-code-intel-worker (source)	minor	6.1.1295 -> 6.3.0
index.docker.io/sourcegraph/syntax-highlighter (source)	minor	6.1.2889 -> 6.3.0
index.docker.io/sourcegraph/worker (source)	minor	6.1.2889 -> 6.3.0

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Configuration

📅 Schedule: Branch creation - "before 3am on Monday" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ 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 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.