[chore]: bump to ubi minimal 9.7

Author: ivanape

build/Dockerfile

@@ -17,7 +17,7 @@ RUN go env
 RUN CGO_ENABLED=0 go build -buildvcs=false -o /output/chaos-operator -v ./main.go
 
 # Packaging stage
-FROM registry.access.redhat.com/ubi9/ubi-minimal:9.5
+FROM registry.access.redhat.com/ubi9/ubi-minimal:9.7
 
 LABEL maintainer="LitmusChaos"