Migrate to bzlmod. New errors suddenly appeared in the builds.

New errors appeared in the builds, and migrating to bzlmod seems like the easiest solution to most of them.

There is still an issue with rules docker (rules_docer/issues#2275). #91

.bazelversion

@@ -0,0 +1 @@
+7.0.2

BUILD.bazel

@@ -1,12 +1,11 @@
+load("@rules_go//go:def.bzl", "go_library", "go_test")
+
 # A build file for rpmpack.
 # For running basic build/run/test you can also use the regular go tools,
 # this is currently added to assist in external testing.
 
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
-load("@bazel_gazelle//:def.bzl", "gazelle")
+load("@gazelle//:def.bzl", "gazelle")
 
-# gazelle:prefix github.com/google/rpmpack
-# gazelle:go_naming_convention import_alias
 gazelle(name = "gazelle")
 
 go_library(
@@ -50,9 +49,3 @@ go_test(
         "@com_github_ulikunitz_xz//lzma",
     ],
 )
-
-alias(
-    name = "go_default_library",
-    actual = ":rpmpack",
-    visibility = ["//visibility:public"],
-)

MODULE.bazel

@@ -0,0 +1,20 @@
+module(
+  name = "rpmpack",
+  version = "0.6.0",
+)
+
+bazel_dep(name = "rules_go", version = "0.46.0")
+bazel_dep(name = "gazelle", version = "0.35.0")
+
+go_deps = use_extension("@gazelle//:extensions.bzl", "go_deps")
+go_deps.from_file(go_mod = "//:go.mod")
+
+# All *direct* Go dependencies of the module have to be listed explicitly.
+use_repo(
+    go_deps,
+    "com_github_cavaliergopher_cpio",
+    "com_github_google_go_cmp",
+    "com_github_klauspost_compress",
+    "com_github_klauspost_pgzip",
+    "com_github_ulikunitz_xz",
+)