No longer test on or use PHP 7.4 in CI

Author: greg-1-anderson

.github/workflows/3x.yml

@@ -24,7 +24,7 @@ jobs:
   checkout_build:
     runs-on: ubuntu-latest
     container:
-      image: quay.io/pantheon-public/php-ci:v7.4
+      image: quay.io/pantheon-public/php-ci:v8.2
     name: Checkout & build Phar
     steps:
       - name: Checkout
@@ -58,7 +58,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ 'macos-latest' ]
-        php-versions: [ '7.4', '8.2', '8.4' ]
+        php-versions: [ '8.2', '8.4' ]
       max-parallel: 1
     env:
       TERMINUS_TOKEN: ${{ secrets.TERMINUS_TOKEN }}
@@ -127,7 +127,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Release
     container:
-      image: quay.io/pantheon-public/php-ci:v7.4
+      image: quay.io/pantheon-public/php-ci:v8.2
     needs: [ functional ]
     if: ${{ startsWith(github.ref, 'refs/tags/')  && github.repository == 'pantheon-systems/terminus' }}
     steps: