refactor(ga-screenshots): option to test single component (#27841)

Issue number: N/A

---------

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issue. -->

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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

All the E2E tests are run when performing the "Update Reference
Screenshots" GitHub actions.

![Screenshot 2024-01-25 at 1 31
15 PM](https://github.com/ionic-team/ionic-framework/assets/13530427/bc27156b-bd91-446a-8878-0a3d8676b103)


## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- All E2E tests still run as default.
- The GH action has the option to run a specific component instead of
all tests.
- A specified component has the option to run all tests that include the
component's name in the file path
- A specified component has the option to run all tests that are in the
component's folder
- If a single component is selected, then the default is to only run
tests inside it's folder.

![Screenshot 2024-01-25 at 1 30
34 PM](https://github.com/ionic-team/ionic-framework/assets/13530427/0143fc0b-c7e7-4312-b7ea-e42a79dc7e09)


## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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and migration path for existing applications below. -->


## Other information

<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->

How to test:

1. Create a new branch based off this one
2. Make a style change
3. Push it to the new branch
4. Update the reference images using the new branch
5. This will show you all the options

Recommended to test:
- a component with the ion prefix (`ion-button`)
- a component without the prefix (`button`)
- a component that doesn't exist (`random-component`)
- no provided component, leave the first input blank
- the checkbox

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Co-authored-by: Liam DeBeasi <liamdebeasi@users.noreply.github.com>

.github/workflows/update-screenshots.yml

@@ -2,6 +2,11 @@ name: 'Update Reference Screenshots'
 
 on:
   workflow_dispatch:
+    inputs:
+      component:
+        description: 'What component(s) should be updated? (leave blank to update all or use a space-separated list for multiple components)'
+        required: false
+        default: ''
 
 jobs:
   build-core:
@@ -34,6 +39,7 @@ jobs:
           shard: ${{ matrix.shard }}
           totalShards: ${{ matrix.totalShards }}
           update: true
+          component: ${{ inputs.component }}
 
   update-reference-screenshots:
     runs-on: ubuntu-latest