test: migrate example-basic-pnpm to Ubuntu 20.04 / 22.04

Correct duplicated workflow name to example-basic-pnpm
Replace Ubuntu 18.04/20.04 combination by Ubuntu 20.04 / 22.04
Bump actions/checkout@v2 to v3 to mitigate Node.js 12 deprecation warning

.github/workflows/example-basic-pnpm.yml

@@ -1,4 +1,4 @@
-name: example-basic
+name: example-basic-pnpm
 on:
   push:
     branches:
@@ -7,8 +7,8 @@ on:
 jobs:
   # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Cypress v9 and lower ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #
 
-  basic-pnpm-ubuntu-18:
-    runs-on: ubuntu-18.04
+  basic-pnpm-ubuntu-20:
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -20,7 +20,7 @@ jobs:
 
       - name: Cypress tests
         # normally you would write
-        # uses: cypress-io/github-action@v2
+        # uses: cypress-io/github-action@v5
         uses: ./
         # the parameters below are only necessary
         # because we are running these examples in a monorepo
@@ -31,8 +31,8 @@ jobs:
           # see https://on.cypress.io/command-line#cypress-info
           build: npx cypress info
 
-  basic-pnpm-ubuntu-20:
-    runs-on: ubuntu-20.04
+  basic-pnpm-ubuntu-22:
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -109,8 +109,8 @@ jobs:
 
   # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Cypress v10 and higher ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #
 
-  basic-pnpm-ubuntu-18-v10:
-    runs-on: ubuntu-18.04
+  basic-pnpm-ubuntu-20-v10:
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -122,7 +122,7 @@ jobs:
 
       - name: Cypress tests
         # normally you would write
-        # uses: cypress-io/github-action@v2
+        # uses: cypress-io/github-action@v5
         uses: ./
         # the parameters below are only necessary
         # because we are running these examples in a monorepo
@@ -133,8 +133,8 @@ jobs:
           # see https://on.cypress.io/command-line#cypress-info
           build: npx cypress info
 
-  basic-pnpm-ubuntu-20-v10:
-    runs-on: ubuntu-20.04
+  basic-pnpm-ubuntu-22-v10:
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout
         uses: actions/checkout@v3