Fix numpy version

slo-checker/dropped-records/requirements.txt

@@ -4,3 +4,4 @@ uvicorn>=0.15.0,<0.16.0
 #pydantic>=1.8.0,<2.0.0
 #scikit-learn==0.22.2
 pandas==1.0.3
+numpy==1.23.1

slo-checker/generic/requirements.txt

@@ -4,3 +4,4 @@ uvicorn>=0.15.0,<0.16.0
 #pydantic>=1.8.0,<2.0.0
 #scikit-learn==0.22.2
 pandas==1.0.3
+numpy==1.23.1

slo-checker/record-lag/requirements.txt

@@ -4,3 +4,4 @@ uvicorn>=0.15.0,<0.16.0
 #pydantic>=1.8.0,<2.0.0
 scikit-learn==0.22.2
 pandas==1.0.3
+numpy==1.23.1