chore: upgrade go to 1.23.7 in the e2e dockerfile (#6023)

Author: lucix-aws

e2e/Dockerfile

@@ -1,6 +1,6 @@
 FROM docker:20.10.13-dind
 
-ARG GOLANG_VERSION=1.20
+ARG GOLANG_VERSION=1.23.7
 
 # Docker needs somewhere to put creds from docker login.
 RUN wget https://github.com/docker/docker-credential-helpers/releases/download/v0.6.0/docker-credential-pass-v0.6.0-amd64.tar.gz && tar -xf docker-credential-pass-v0.6.0-amd64.tar.gz && chmod +x docker-credential-pass &&  mv docker-credential-pass /bin