[RHOAIENG-7286] - ubi9 upgrade - builder iamge (#62)

Signed-off-by: Spolti <[email protected]>

Author: spolti

Dockerfile

@@ -17,7 +17,7 @@
 ###############################################################################
 ARG GOLANG_VERSION=1.22
 ARG BUILD_BASE=develop
-FROM --platform=$BUILDPLATFORM registry.access.redhat.com/ubi8/go-toolset:$GOLANG_VERSION AS develop
+FROM --platform=$BUILDPLATFORM registry.access.redhat.com/ubi9/go-toolset:$GOLANG_VERSION AS develop
 
 ARG PROTOC_VERSION=21.12
 
@@ -31,7 +31,7 @@ RUN --mount=type=cache,target=/root/.cache/dnf:rw \
       nodejs \
       python3.11  \
       python3.11-pip \
-    && alternatives --set python /usr/bin/python3.11 \
+    && alternatives --install /usr/bin/unversioned-python python /usr/bin/python3.11 1 \
     && alternatives --install /usr/bin/pip pip /usr/bin/pip3.11 1 \
     && true