test(bunny-storage): fix flaky integration snapshot + run CI on PRs

.github/workflows/ci.yml

@@ -3,7 +3,8 @@ name: Continous integration
 on:
   push:
     branches:
-    - '*'
+      - main
+  pull_request:
 
 jobs:
   checkout:

libs/bunny-storage/tests/__snapshots__/integration.test.ts.snap

@@ -1,7 +1,5 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Integration test with Storage Create Fail to create a proper file with invalid checksum: invalid_fail_file_1 1`] = `[Error: Unable to upload file. Either invalid path specified, either provided checksum invalid]`;
-
 exports[`Integration test with Storage List The list should be a single tests forlder 1`] = `
 [
   "tests",

libs/bunny-storage/tests/integration.test.ts

@@ -126,7 +126,8 @@ describe('Integration test with Storage', () => {
         // Should not be here.
         expect(false).toBeTruthy();
       } catch (e) {
-        expect(e).toMatchSnapshot("invalid_fail_file_1");
+        expect(e).toBeInstanceOf(Error);
+        expect((e as Error).message).toContain("invalid path or checksum");
       }
 
       let list = await BunnyStorageSDK.file.list(sz, generation_id);