Update GitHub Actions to use latest versions of checkout, setup-python, and cache actions

Author: dobrienphd

.github/workflows/c-cpp.yml

@@ -10,10 +10,10 @@ jobs:
 
     steps:
     - name: Clone ParticleZoo repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Setup Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: '3.x'
 
@@ -68,10 +68,10 @@ jobs:
 
     steps:
     - name: Clone ParticleZoo repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Setup Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: '3.x'
 
@@ -126,19 +126,19 @@ jobs:
 
     steps:
     - name: Clone ParticleZoo repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Setup MSVC
       uses: ilammy/msvc-dev-cmd@v1
 
     - name: Setup Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: '3.x'
 
     - name: Cache ROOT framework
       id: cache-root
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: C:\root
         key: root-v6.36.04-win64-python311-vc17