chore: configure dependabot to add a conventional commit prefix (#537)

### Summary
Every time dependabot makes a PR it fails the PR title test. I'm hoping
this will fix it.

I'm not sure it will take effect for the existing PRs, so we might need
to wait for the next to confirm it's working.

I also added configs to skip the title check for draft PRs just to show
a bit less red in the PR list.

Author: aganders3

.github/depentabot.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    commit-message:
+      # see .releaserc.json in the repo root for how these prefixes map to version bumps
+      prefix: "fix"
+      prefix-development: "chore"
+      # includes the scope in the prefix, like this:
+      # fix(deps):
+      # chore(deps-dev):
+      include: "scope"

.github/workflows/pr-title-check.yml

@@ -10,10 +10,12 @@ on:
       - edited
       - synchronize
       - reopened
+      - ready_for_review
 
 jobs:
   check-pr-title:
     runs-on: ubuntu-latest
+    if: github.event.pull_request.draft == false
     steps:
       - name: Check PR title
         uses: amannn/action-semantic-pull-request@v5