Dependabot cannot detect latest version of my Github Action

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Package ecosystem

GitHub-actions

### Package manager version

_No response_

### Language version

_No response_

### Manifest location and content before the Dependabot update

_No response_

### dependabot.yml content

_No response_

### Updated dependency

_No response_

### What you expected to see, versus what you actually saw

I was expecting Dependabot to check for latest version of a GitHub action and create pull request.
but it failed to get the latest version.

here is the log

updater | 2023/05/04 10:15:13 INFO Checking if justin-jhg/jira-release-actions needs updating
proxy | 2023/05/04 10:15:13 [060] GET https://github.com:443/justin-jhg/jira-release-actions.git/info/refs?service=git-upload-pack
proxy | 2023/05/04 10:15:13 [060] * authenticating git server request (host: github.com)
proxy | 2023/05/04 10:15:13 [060] 200 https://github.com:443/justin-jhg/jira-release-actions.git/info/refs?service=git-upload-pack
updater | 2023/05/04 10:15:13 I**NFO Latest version is**
updater | 2023/05/04 10:15:13 INFO No update needed for justin-jhg/jira-release-actions

so it returning saying latest version is EMPTY

### Native package manager behavior

_No response_

### Images of the diff or a link to the PR, issue, or logs

_No response_

### Smallest manifest that reproduces the issue

_No response_