update ubuntu on phantom workflow (#344)

Update actions to ubuntu latest and new cache version

Author: bendhouseart

.github/workflows/phantoms.yaml

@@ -27,7 +27,7 @@ jobs:
 
     strategy:
       matrix:
-        os: [ubuntu-20.04]
+        os: [ubuntu-latest]
         python: ["3.10"]
       fail-fast: false
 
@@ -37,15 +37,15 @@ jobs:
 
       - name: Cache Node Posix
         if: runner.os != 'Windows' && !env.ACT
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.npm
           key: npm-${{ runner.os }}-${{ env.cache-name }}
 
       - name: Cache Phantoms
         if: ${{ !env.ACT }}
         id: phantom-cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         env:
           cache-name: cache-phantoms
         with:
@@ -136,15 +136,15 @@ jobs:
           bash python_conversions.sh
 
       - name: SetupMatlab
-        if: ${{ matrix.os == 'ubuntu-20.04' }}
+        if: ${{ matrix.os == 'ubuntu-latest' }}
         uses: matlab-actions/setup-matlab@v1
         # note matlab-actions/setup-matlab@v2 breaks this script, don't update unless you're forced to
         #with:
           #release: 'R2023a'
           #cache: true
 
       - name: Run Matlab Conversion Script on Phantoms
-        if: ${{ matrix.os == 'ubuntu-20.04' }}
+        if: ${{ matrix.os == 'ubuntu-latest' }}
         uses: matlab-actions/run-command@v1
         with:
           command: |

.github/workflows/python.yaml

@@ -38,7 +38,7 @@ jobs:
 
       - name: Cache Phantoms
         id: cache-phantoms
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: US-sourced-OpenNeuroPET-Phantoms.zip
           key: ${{ runner.os }}-phantoms