bug(ENG-21501): Fix integer overflow in hosted_git_info.zig (#24561)

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

test/cli/install/hosted-git-info/boundary-conditions.test.ts

@@ -0,0 +1,30 @@
+import { describe, expect, test } from "bun:test";
+import { bunEnv, bunExe, tempDir } from "harness";
+
+describe("hosted-git-info boundary conditions", () => {
+  test.each([{ description: "git with pound", dependency: "https://github.com/#" }])(
+    "handle $description",
+    async ({ description: _, dependency }) => {
+      using dir = tempDir("hosted-git-info-empty", {
+        "package.json": JSON.stringify({
+          name: "test",
+          dependencies: {
+            dependency,
+          },
+        }),
+      });
+
+      await using proc = Bun.spawn({
+        cmd: [bunExe(), "install"],
+        cwd: String(dir),
+        env: bunEnv,
+        stderr: "pipe",
+        stdout: "pipe",
+      });
+
+      const [stderr] = await Promise.all([proc.stderr.text(), proc.exited]);
+
+      expect(stderr).not.toContain("panic");
+    },
+  );
+});