ci: Bump BabbleSim version from v2.2 to v2.3

Which includes some new encryption APIs.
Note bsim keeps being backwards compatible.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>

Dockerfile.ci

@@ -15,7 +15,7 @@ ARG RENODE_VERSION=1.15.2
 ENV RENODE_VERSION=$RENODE_VERSION
 ARG LLVM_VERSION=16
 ENV LLVM_VERSION=$LLVM_VERSION
-ARG BSIM_VERSION=v2.2
+ARG BSIM_VERSION=v2.3
 ENV BSIM_VERSION=$BSIM_VERSION
 ARG SPARSE_VERSION=9212270048c3bd23f56c20a83d4f89b870b2b26e
 ENV SPARSE_VERSION=$SPARSE_VERSION