Format dependabot.yml (radius-project#8094)

# Description

Update formatting for dependabot.yml

## Type of change

- This pull request is a minor refactor, code cleanup, test improvement,
or other maintenance task and doesn't change the functionality of Radius
(issue link optional).

Fixes: #issue_number

## Contributor checklist
Please verify that the PR meets the following requirements, where
applicable:

- [ ] An overview of proposed schema changes is included in a linked
GitHub issue.
- [ ] A design document PR is created in the [design-notes
repository](https://github.com/radius-project/design-notes/), if new
APIs are being introduced.
- [ ] If applicable, design document has been reviewed and approved by
Radius maintainers/approvers.
- [ ] A PR for the [samples
repository](https://github.com/radius-project/samples) is created, if
existing samples are affected by the changes in this PR.
- [ ] A PR for the [documentation
repository](https://github.com/radius-project/docs) is created, if the
changes in this PR affect the documentation or any user facing updates
are made.
- [ ] A PR for the [recipes
repository](https://github.com/radius-project/recipes) is created, if
existing recipes are affected by the changes in this PR.

Signed-off-by: lakshmimsft <[email protected]>

.github/dependabot.yml

@@ -36,6 +36,6 @@ updates:
       typespec:
         applies-to: version-updates
         patterns:
-        - "*"        # Matches all dependencies
+          - "*" # Matches all dependencies
         update-types:
-        - "patch"    # Only allow patch updates for regular version updates
+          - "patch" # Only allow patch updates for regular version updates