Merge branch 'dependabot' into devel

Author: Clea F. Rees

.github/workflows/main.yml

@@ -28,7 +28,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # https://github.com/josephwright/siunitx/blob/549cad913591b92a3a199b7477a325866303bf29/.github/workflows/main.yaml
       # We need Ghostscript for XeTeX tests.