Bump Bazel to 7.1.1 (#564)

Switch to bzlmod exclusively (no WORKSPACE anymore).

Fix bzlmod integration with npm. The 5.x series of rules_js is
unmaintained and does not support bzlmod, and the 6.x series only has
toolchains (with no packaging rules). Switch to aspect_rules_js which
is currently the best source of npm packaging rules.

Author: jwnimmer-tri

.bazelversion

@@ -1 +1 @@
-6.0.0
+7.1.1

BUILD

@@ -1,6 +1,6 @@
 load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library", "go_test")
 load("@bazel_gazelle//:def.bzl", "gazelle")
-load("@build_bazel_rules_nodejs//:index.bzl", "pkg_npm")
+load("@aspect_rules_js//npm:defs.bzl", "npm_package", "stamped_package_json")
 
 # gazelle:prefix github.com/bazelbuild/bazelisk
 gazelle(name = "gazelle")
@@ -152,22 +152,25 @@ go_binary(
     visibility = ["//visibility:public"],
 )
 
-pkg_npm(
+stamped_package_json(
+    name = "package",
+    # This key is defined by /stamp.sh
+    stamp_var = "BUILD_SCM_VERSION",
+)
+
+npm_package(
     name = "npm_package",
-    package_name = "@bazel/bazelisk",
     srcs = [
         "LICENSE",
         "README.md",
         "bazelisk.d.ts",
         "bazelisk.js",
-        "package.json",
-    ],
-    substitutions = {"0.0.0-PLACEHOLDER": "{BUILD_SCM_VERSION}"},
-    deps = [
         ":bazelisk-darwin-amd64",
         ":bazelisk-darwin-arm64",
         ":bazelisk-linux-amd64",
         ":bazelisk-linux-arm64",
         ":bazelisk-windows-amd64",
+        ":package",
     ],
+    package = "@bazel/bazelisk",
 )

MODULE.bazel

@@ -1,10 +1,9 @@
 module(name = "bazelisk", version="")
 
-bazel_dep(name = "bazel_skylib", version = "1.4.2")
 bazel_dep(name = "gazelle", version = "0.32.0", repo_name = "bazel_gazelle")
 bazel_dep(name = "platforms", version = "0.0.7")
-bazel_dep(name = "rules_nodejs", version = "5.5.3", repo_name = "build_bazel_rules_nodejs")
 bazel_dep(name = "rules_go", version = "0.41.0", repo_name = "io_bazel_rules_go")
+bazel_dep(name = "aspect_rules_js", version = "1.39.1")
 # -- bazel_dep definitions -- #
 
 go_sdk = use_extension("@io_bazel_rules_go//go:extensions.bzl", "go_sdk")

WORKSPACE

@@ -1,7 +1,6 @@
 {
     "name": "@bazel/bazelisk",
     "description": "A user-friendly launcher for Bazel",
-    "version": "0.0.0-PLACEHOLDER",
     "license": "Apache-2.0",
     "bin": {
         "bazelisk": "bazelisk.js",