chore(deps, rust): update github.copilot in devcontainer.json (#991)

Update github.copilot in devcontainer.json

Co-authored-by: philips-software-forest-releaser[bot] <80338643+philips-software-forest-releaser[bot]@users.noreply.github.com>

Author: philips-software-forest-releaser[bot]

.devcontainer/rust/devcontainer.json

@@ -14,7 +14,7 @@
         "files.trimTrailingWhitespace": true
       },
       "extensions": [
-        "github.copilot@1.372.0",
+        "github.copilot@1.388.0",
         "github.vscode-github-actions@0.28.0",
         "github.vscode-pull-request-github@0.120.1",
         "jetmartin.bats@0.1.10",