Check CI build with 1.63.0 as MSRV

Author: G8XSU

.github/workflows/build.yml

@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        toolchain: [ stable, beta ]
+        toolchain: [ stable, beta, 1.63.0 ] # 1.63.0 is current MSRV for vss-client
         include:
           - toolchain: stable
             check-fmt: true

README.md

@@ -7,3 +7,6 @@ simplify the development process for Lightning wallets by providing a secure mea
 and manage the essential state required for Lightning Network (LN) operations.
 
 Learn more [here](https://github.com/lightningdevkit/vss-server/blob/main/README.md).
+
+## MSRV
+The Minimum Supported Rust Version (MSRV) is currently 1.63.0.