Update CI

Author: goerz

.github/workflows/CI.yml

@@ -25,11 +25,10 @@ jobs:
             version: '1'
     steps:
       - uses: actions/checkout@v4
-      - uses: julia-actions/cache@v1
-      - uses: julia-actions/setup-julia@v1
+      - uses: julia-actions/cache@v2
+      - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
-      - uses: julia-actions/cache@v1
       - name: "Instantiate test environment"
         run: |
           wget https://raw.githubusercontent.com/JuliaQuantumControl/JuliaQuantumControl/master/scripts/installorg.jl
@@ -54,7 +53,7 @@ jobs:
           using QuantumControlTestUtils
           show_coverage()
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v3
+      - uses: codecov/codecov-action@v4
         with:
           files: lcov.info
   docs:
@@ -65,7 +64,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: julia-actions/cache@v1
-      - uses: julia-actions/setup-julia@v1
+      - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
       - run: |
@@ -101,7 +100,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: julia-actions/setup-julia@v1
+      - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
       - name: Get codestyle settings