Merge pull request #3826 from jamshale/0.12.lts.patch

Upgrade rust version for indy-build to 1.56

Author: swcurran

docker/Dockerfile.indy

@@ -1,5 +1,5 @@
 ARG python_version=3.9.18
-ARG rust_version=1.46
+ARG rust_version=1.56
 
 # This image could be replaced with an "indy" image from another repo,
 # such as the indy-sdk