style: simplify SpecVersionDict (#451)

Signed-off-by: Jan Kowalleck <[email protected]>

Author: jkowalleck

src/spec.ts

@@ -298,10 +298,8 @@ export const Spec1dot4: Readonly<Protocol> = Object.freeze(new Spec(
   true
 ))
 
-export const SpecVersionDict: { readonly [key in Version]?: Readonly<Protocol> } = Object.freeze(
-  Object.fromEntries([
-    [Version.v1dot2, Spec1dot2],
-    [Version.v1dot3, Spec1dot3],
-    [Version.v1dot4, Spec1dot4]
-  ])
-)
+export const SpecVersionDict: { readonly [key in Version]?: Readonly<Protocol> } = Object.freeze({
+  [Version.v1dot2]: Spec1dot2,
+  [Version.v1dot3]: Spec1dot3,
+  [Version.v1dot4]: Spec1dot4
+})