Revert "fix: making the github urls case insensitive" (#32220)

Signed-off-by: benjdlambert <ben@blam.sh>

.changeset/polite-pillows-accept.md

@@ -0,0 +1,5 @@
+---
+'@backstage/integration': patch
+---
+
+Rollback the lowercase replacing in GitHub integration config

packages/integration/src/github/GithubIntegration.test.ts

@@ -134,24 +134,4 @@ describe('replaceGithubUrlType', () => {
       ),
     ).toBe('https://github.com/backstage/backstage/blob/tree/README.md');
   });
-  it('should replace with lowercase', () => {
-    expect(
-      replaceGithubUrlType(
-        'https://githuB.com/backstage/backstage/blob/master/README.md',
-        'edit',
-      ),
-    ).toBe('https://github.com/backstage/backstage/edit/master/README.md');
-    expect(
-      replaceGithubUrlType(
-        'https://github.com/Backstage/backstage/blob/master/README.md',
-        'edit',
-      ),
-    ).toBe('https://github.com/backstage/backstage/edit/master/README.md');
-    expect(
-      replaceGithubUrlType(
-        'https://github.com/backstage/Backstage/blob/master/README.md',
-        'edit',
-      ),
-    ).toBe('https://github.com/backstage/backstage/edit/master/README.md');
-  });
 });

packages/integration/src/github/GithubIntegration.ts

@@ -95,9 +95,7 @@ export function replaceGithubUrlType(
   return url.replace(
     /\/\/([^/]+)\/([^/]+)\/([^/]+)\/(blob|tree|edit)\//,
     (_, host, owner, repo) => {
-      return `//${host.toLocaleLowerCase('en-US')}/${owner.toLocaleLowerCase(
-        'en-US',
-      )}/${repo.toLocaleLowerCase('en-US')}/${type}/`;
+      return `//${host}/${owner}/${repo}/${type}/`;
     },
   );
 }