Bump denoland/deno in /supabase/functions/_cmd in the docker group

Bumps the docker group in /supabase/functions/_cmd with 1 update: denoland/deno.


Updates `denoland/deno` from 1.45.2 to 2.6.3

---
updated-dependencies:
- dependency-name: denoland/deno
  dependency-version: 2.6.3
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: docker
...

Signed-off-by: dependabot[bot] <support@github.com>

supabase/functions/_cmd/Dockerfile

@@ -1,4 +1,4 @@
-FROM denoland/deno:1.45.2
+FROM denoland/deno:2.7.9
 
 WORKDIR /app