Remove pandas from bootstrap.py and as docker dependency

We'll not depend on pandas for normal builds, skipping
test_motion_ramp.py if not installed.

utils/bootstrap.py

@@ -63,7 +63,7 @@ dependencies = {
         }
     },
 }
-pip_dependencies = ['pandas']
+pip_dependencies = []
 # yapf: enable
 
 

utils/holly/Dockerfile

@@ -2,7 +2,7 @@ FROM gcc:11.1
 RUN apt-get clean && \
     apt-get update -qq -y && \
     apt-get install curl python3 python3-pip libncurses5 -y
-RUN pip3 install pre-commit ecdsa
+RUN pip3 install pre-commit ecdsa pandas
 WORKDIR /work
 ADD utils/bootstrap.py bootstrap.py
 RUN gcc --version