ci(deps): set labels and commit prefix for dependabot (#550)

- use categorized labels, same as Workflows
- follow our standard conventional commit prefixes for deps

Signed-off-by: Anton Gilgur <agilgur5@gmail.com>

.github/dependabot.yml

@@ -8,6 +8,12 @@ updates:
       day: "saturday"
     # ignore all non-security updates: https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#open-pull-requests-limit
     open-pull-requests-limit: 0
+    labels:
+      - type/dependencies
+      - javascript
+    commit-message:
+      prefix: chore(deps)
+      prefix-development: chore(deps-dev)
 
   # build / CI dependencies
   - package-ecosystem: "github-actions"
@@ -17,3 +23,8 @@ updates:
       day: "saturday"
     # ignore all non-security updates: https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#open-pull-requests-limit
     open-pull-requests-limit: 0
+    labels:
+      - type/dependencies
+      - github_actions
+    commit-message:
+      prefix: chore(deps)