Add PyVSC to requirements.txt file

.github/workflows/python.yaml

@@ -32,7 +32,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements.txt
+          pip install -r tb/requirements.txt
       
       - name: Format with black
         run: |

.github/workflows/regression.yaml

@@ -37,7 +37,7 @@ jobs:
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements.txt
+          pip install -r tb/requirements.txt
       
       - name: Install verilator
         run: |

requirements.txt → tb/requirements.txt

@@ -1,6 +1,7 @@
 # Python dependencies
 pytest
 black
+pyvsc
 
 cocotb == 1.8.0
 cocotb-bus == 0.2.1