CI: updated ubuntu runners

Author: frankmorgner

.github/workflows/coverity.yml

@@ -11,7 +11,7 @@ permissions:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
     - run: .github/build.sh coverity

.github/workflows/ubuntu.yml

@@ -21,7 +21,7 @@ permissions:  # added using https://github.com/step-security/secure-repo
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
     - run: .github/build.sh ubuntu
@@ -32,7 +32,7 @@ jobs:
           openpace*.tar.gz
 
   build-ape:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
     - run: .github/build.sh ape