GitHub Actions: use Ubuntu 24.04

Author: simon04

.github/workflows/build.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   deploy:
     name: Deploy to Heroku
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     if: github.repository == 'freeCodeCamp/devdocs'
     steps:
     - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0

.github/workflows/schedule-doc-report.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   report:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     if: github.repository == 'freeCodeCamp/devdocs'
     steps:
     - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0