feat: standalone testing check

[ryan-timothy-albert]

Moves forward with us running testing by default as a PR check

• Allows the user to attach their own ACTION_PAT to automatically trigger tests
• Also leaves the door open to use using our app to trigger tests either with empty commits or opening/closing PRs

[ryan-timothy-albert]

This actual auto generated github file would look something like the following [autogenerated of course]

name: Test Petstore
permissions:
  checks: write
  contents: write
  pull-requests: write
  statuses: write

on:
  workflow_dispatch:
    inputs:
      target:
        description: Specific target to test
        type: string
        required: true
  pull_request:
    paths:
      - 'sdk/**'
    branches:
      - main
  push: # if you have setup your own ACTION_PAT feel free to remove this trigger
      branches:
        - speakeasy-sdk-regen-*
jobs:
  test:
    uses: speakeasy-api/sdk-generation-action/.github/workflows/sdk-test.yaml@v15
    with:
      target: ${{ github.event.inputs.target }}
    secrets:
      github_access_token: ${{ secrets.GITHUB_TOKEN }}
      speakeasy_api_key: ${{ secrets.SPEAKEASY_API_KEY }}

action_pat: ${{ secrets.ACTION_PAT }}

Optionally added to generation action

[TristanSpeakEasy]

LGTM but I will let @chase-crumbaugh approve