treewide: bump bazel to 7.4.1

This is required to allow disk cache garbage collection.

Change-Id: I8ecc48636746c4fe076dba0655785e02b6d8caa4
Reviewed-on: https://review.monogon.dev/c/monogon/+/3755
Tested-by: Jenkins CI
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
diff --git a/third_party/nix/env.nix b/third_party/nix/env.nix
index 43232f3..c48b589 100644
--- a/third_party/nix/env.nix
+++ b/third_party/nix/env.nix
@@ -40,8 +40,8 @@
     (stdenv.mkDerivation {
       name = "bazel";
       src = builtins.fetchurl {
-        url = "https://github.com/bazelbuild/bazel/releases/download/7.2.1/bazel-7.2.1-linux-x86_64";
-        sha256 = "0xbqyq5lhpjmaqrz223qvalwpp9g0xkjsqnpwpxm11xqnknd3k40";
+        url = "https://github.com/bazelbuild/bazel/releases/download/7.4.1/bazel-7.4.1-linux-x86_64";
+        sha256 = "0ar0qvxa3a7bms4baa84r1aq5yk53prc32k75063zrnw789h4zy9";
       };
       unpackPhase = ''
         true