gh-actions: upgrade Singularity version used for testing

Author: mr-c

.github/workflows/ci-tests.yml

@@ -47,8 +47,8 @@ jobs:
       - name: Set up Singularity and environment-modules
         if: ${{ matrix.step == 'unit' || matrix.step == 'mypy' }}
         run: |
-          wget --no-verbose https://github.com/sylabs/singularity/releases/download/v4.2.1/singularity-ce_4.2.1-focal_amd64.deb
-          sudo apt-get install -y ./singularity-ce_4.2.1-focal_amd64.deb environment-modules
+          wget --no-verbose https://github.com/sylabs/singularity/releases/download/v4.3.5/singularity-ce_4.3.5-noble_amd64.deb
+          sudo apt-get install -y ./singularity-ce_4.3.5-noble_amd64.deb environment-modules
 
       - name: Give the test runner user a name to make provenance happy.
         if: ${{ matrix.step == 'unit' || matrix.step == 'mypy' }}
@@ -137,8 +137,8 @@ jobs:
 
       - name: Set up Singularity and environment-modules
         run: |
-          wget --no-verbose https://github.com/sylabs/singularity/releases/download/v4.2.1/singularity-ce_4.2.1-focal_amd64.deb
-          sudo apt-get install -y ./singularity-ce_4.2.1-focal_amd64.deb environment-modules
+          wget --no-verbose https://github.com/sylabs/singularity/releases/download/v4.3.5/singularity-ce_4.3.5-noble_amd64.deb
+          sudo apt-get install -y ./singularity-ce_4.3.5-noble_amd64.deb environment-modules
 
       - name: Give the test runner user a name to make provenance happy.
         run: sudo usermod -c 'CI Runner' "$(whoami)"
@@ -186,8 +186,8 @@ jobs:
       - name: Set up Singularity and environment-modules
         if: ${{ matrix.container == 'singularity' }}
         run: |
-          wget --no-verbose https://github.com/sylabs/singularity/releases/download/v4.2.1/singularity-ce_4.2.1-focal_amd64.deb
-          sudo apt-get install -y ./singularity-ce_4.2.1-focal_amd64.deb environment-modules
+          wget --no-verbose https://github.com/sylabs/singularity/releases/download/v4.3.5/singularity-ce_4.3.5-noble_amd64.deb
+          sudo apt-get install -y ./singularity-ce_4.3.5-noble_amd64.deb environment-modules
 
       - name: Singularity cache
         if: ${{ matrix.container == 'singularity' }}
@@ -234,8 +234,8 @@ jobs:
 
       - name: Set up Singularity and environment-modules
         run: |
-          wget --no-verbose https://github.com/sylabs/singularity/releases/download/v4.2.1/singularity-ce_4.2.1-focal_amd64.deb
-          sudo apt-get install -y ./singularity-ce_4.2.1-focal_amd64.deb environment-modules
+          wget --no-verbose https://github.com/sylabs/singularity/releases/download/v4.3.5/singularity-ce_4.3.5-noble_amd64.deb
+          sudo apt-get install -y ./singularity-ce_4.3.5-noble_amd64.deb environment-modules
 
       - name: Set up Python
         uses: actions/setup-python@v6