add msrv

Author: yanganto

Cargo.toml

@@ -15,3 +15,4 @@ license = "MIT"
 readme = "README.md"
 repository = "https://github.com/yanganto/struct-patch/"
 description = "A library that helps you implement partial updates for your structs."
+rust-version = "1.61.0"

struct-patch-derive/Cargo.toml

@@ -9,6 +9,7 @@ repository.workspace = true
 description.workspace = true
 license.workspace = true
 readme.workspace = true
+rust-version.workspace = true
 
 [lib]
 proc-macro = true

struct-patch/Cargo.toml

@@ -9,6 +9,7 @@ repository.workspace = true
 description.workspace = true
 license.workspace = true
 readme.workspace = true
+rust-version.workspace = true
 
 [dependencies]
 struct-patch-derive = { version = "=0.10.3", path = "../struct-patch-derive" }