Add missing Windows msbuild dependency, now required for building

Signed-off-by: Bryan D. Ashby <bryan@l33t.codes>

Author: NuSkooler

tss-esapi-sys/Cargo.toml

@@ -25,5 +25,5 @@ autotools = { version = "0.2.6", optional = true }
 msbuild = { version = "0.2.0", optional = true }
 
 [features]
-generate-bindings = ["bindgen"]
+generate-bindings = ["bindgen", "dep:msbuild"]
 bundled = ["dep:autotools", "dep:msbuild"]