chore: migrate GitHub runners to ubuntu-latest-public (#318)

Author: mia-twilio

.github/workflows/auto-publish.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   build-and-publish:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-public
     name: Build and publish stytch package to PyPI
     steps:
       - uses: actions/checkout@v3

.github/workflows/check-links.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   check-links:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-public
     name: Check links in README.md
     steps:
       - uses: actions/checkout@v3

.github/workflows/pull-request.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   test-stytch:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-public
 
     strategy:
       matrix: