Try using checkout@v4 to avoid temp HOME directory issue

.github/workflows/continuous_integration.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: windows-2019
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install Doxygen
       # choco install doxygen.portable # <-- too unreliable.
@@ -159,7 +159,7 @@ jobs:
     runs-on: windows-2022
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         ref: ${{ github.event.pull_request.base.ref }}
 
@@ -269,7 +269,7 @@ jobs:
       version: ${{ steps.configure.outputs.version }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install Doxygen
       # choco install doxygen.portable # <-- too unreliable.
@@ -375,7 +375,7 @@ jobs:
     if: ${{ contains(github.event.pull_request.title, '[perf-mac]') || contains(github.event.pull_request.body, '[perf-mac]') }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         ref: ${{ github.event.pull_request.base.ref }} 
 
@@ -506,7 +506,7 @@ jobs:
       version: ${{ steps.configure.outputs.version }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install Python packages
       uses: actions/setup-python@v4
@@ -798,7 +798,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install Python packages
       uses: actions/setup-python@v4
@@ -912,7 +912,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install Python packages
       uses: actions/setup-python@v4
@@ -1060,7 +1060,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Check for tabs
       # Ensure that there are no tabs in source code.