PEP 440 support

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

src/tag.ts

@@ -4,6 +4,7 @@ import * as core from '@actions/core';
 export enum Type {
   Schedule = 'schedule',
   Semver = 'semver',
+  Pep440 = 'pep440',
   Match = 'match',
   Edge = 'edge',
   Ref = 'ref',
@@ -42,6 +43,7 @@ export class Tag {
 export const DefaultPriorities: Record<Type, string> = {
   [Type.Schedule]: '1000',
   [Type.Semver]: '900',
+  [Type.Pep440]: '900',
   [Type.Match]: '800',
   [Type.Edge]: '700',
   [Type.Ref]: '600',
@@ -124,7 +126,8 @@ export function Parse(s: string): Tag {
       }
       break;
     }
-    case Type.Semver: {
+    case Type.Semver:
+    case Type.Pep440: {
       if (!tag.attrs.hasOwnProperty('pattern')) {
         throw new Error(`Missing pattern attribute for ${s}`);
       }