fix: use hash instead of url for primary cache key (#102) (#103)

* fix: use hash instead of url for primary cache key (#102)

* Update cache-save.ts

* Update action.ts

* Update cache-save.ts

* build

* format

* [autofix.ci] apply automated fixes

---------

Co-authored-by: Daniil Zotov <142039751+zoto-ff@users.noreply.github.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

src/cache-save.ts

@@ -1,12 +1,15 @@
 import { saveCache } from "@actions/cache";
 import { getState, warning } from "@actions/core";
 import { CacheState } from "./action";
+import { createHash } from "node:crypto";
 
 (async () => {
   const state: CacheState = JSON.parse(getState("cache"));
   if (state.cacheEnabled && !state.cacheHit) {
+    const cacheKey = createHash("sha1").update(state.url).digest("base64");
+
     try {
-      await saveCache([state.bunPath], state.url);
+      await saveCache([state.bunPath], cacheKey);
       process.exit(0);
     } catch (error) {
       warning("Failed to save Bun to cache.");