Bundle GitHub action major version updates (#180)

## Description

### Why is this change being made?

1. GitHub Actions major version updates happen frequently-ish and
usually are not backwards incompatible for us since we use GitHub hosted
runtimes. For example, the move to a new runtime usually warrants a new
action major version.


### What is changing?

1. Bundle GitHub action major version bumps from dependabot into the
same pull request. This makes it easier to review them in a batch.


### Related Links
- **Issue #, if available**:

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## Testing

### How was this tested?

1. 

### When testing locally, provide testing artifact(s):

1. 

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## Reviewee Checklist

**Update the checklist after submitting the PR**

- [x] I have reviewed, tested and understand all changes
  *If not, why:*
- [x] I have filled out the Description and Testing sections above
  *If not, why:*
- [x] Build and Unit tests are passing
  *If not, why:*
- [x] Unit test coverage check is passing
  *If not, why:*
- [x] Integration tests pass locally
  *If not, why:*
- [x] I have updated integration tests (if needed)
  *If not, why:*
- [x] I have ensured no sensitive information is leaking (i.e., no
logging of sensitive fields, or otherwise)
  *If not, why:*
- [x] I have added explanatory comments for complex logic, new
classes/methods and new tests
  *If not, why:*
- [x] I have updated README/documentation (if needed)
  *If not, why:*
- [x] I have clearly called out breaking changes (if any)
  *If not, why:*

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## Reviewer Checklist

**All reviewers please ensure the following are true before reviewing:**

- Reviewee checklist has been accurately filled out
- Code changes align with stated purpose in description
- Test coverage adequately validates the changes

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By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

Signed-off-by: Simon Marty <martysi@amazon.com>

Author: simonmarty

.github/dependabot.yml

@@ -19,6 +19,7 @@ updates:
       dependencies:
         applies-to: version-updates
         update-types:
+          - major
           - minor
           - patch
   - package-ecosystem: "docker"