fix: change docker image version to fix build error #316
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This PR fix the build error that occurs after bumping up the Go version from 1.18 to 1.20, caused by #241
Description
Without this PR, we cannot build a Docker image of Finschia.
The reason is golang:1.20-alpine is using alpine3.19, while alpine3.19 upgraded the libc version which includes the following PR: rust-lang/libc#2935
So, this PR changes the Docker image version and sets it to golang:1.20-alpine3.17.
closes: #314
Motivation and context
How has this been tested?
You can try
make docker-build ARCH=arm64
ormake docker-build
to build docker image locally.Screenshots (if appropriate):
Checklist:
CHANGELOG.md