Bump ubuntu image used, 22.04 has a more recent version of libc that should match the one by github runners. (cosmos#3851)

DimitrisJim · web-flow · commit 540d64bcc750 · 2023-06-15T12:06:53.000+02:00
diff --git a/Dockerfile b/Dockerfile
@@ -24,7 +24,7 @@ COPY Makefile .
 
 RUN make build
 
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 ARG IBC_GO_VERSION
 
