Upgrade to RegistryTools v2, and require at least RegistryTools 2.1.0 (#1269)

* Revert "Revert "Require at least RegistryTools 2.1.0 (#1267)" (#1268)"

This reverts commit 3772aef.

* Upgrade from RegistryTools v1 to RegistryToolsv2

Author: DilumAluthge

Manifest.toml

@@ -364,15 +364,15 @@ version = "1.2.2"
 
 [[deps.Registrator]]
 deps = ["AutoHashEquals", "Base64", "Dates", "Distributed", "FileWatching", "GitForge", "GitHub", "HTTP", "JSON", "LibGit2", "Logging", "MbedTLS", "Mocking", "Mustache", "Mux", "Pkg", "RegistryTools", "Serialization", "Sockets", "TimeToLive", "URIs", "UUIDs", "ZMQ"]
-git-tree-sha1 = "64a7d49e56cf609973854cdd48eb265ac418f6ee"
+git-tree-sha1 = "7242ef64be5953fac9bf8b3efa3a7c4d2d44ca09"
 uuid = "4418983a-e44d-11e8-3aec-9789530b3b3e"
-version = "1.6.0"
+version = "1.8.0"
 
 [[deps.RegistryTools]]
 deps = ["AutoHashEquals", "LibGit2", "Pkg", "SHA", "UUIDs"]
-git-tree-sha1 = "47ab54eff26db6be2496e6300d959e16d8203723"
+git-tree-sha1 = "94060d91cc152680842357aacb402afbd06601aa"
 uuid = "d1eb7eb1-105f-429d-abf5-b0f65cb9e2c4"
-version = "1.9.1"
+version = "2.1.0"
 
 [[deps.Requires]]
 deps = ["UUIDs"]

Project.toml

@@ -44,7 +44,7 @@ ObjectFile = "0.3.6"
 OutputCollectors = "0.1"
 PkgLicenses = "0.2"
 Registrator = "1.1"
-RegistryTools = "1.3.4"
+RegistryTools = "2.1"
 Scratch = "1.0"
 ghr_jll = "0.13, 0.14"
 julia = "1.7"

src/AutoBuild.jl

@@ -566,10 +566,12 @@ function register_jll(name, build_version, dependencies, julia_compat;
     cache.registries[registry_url] = Base.UUID("23338594-aafe-5451-b93e-139f81909106")
     jllwrappers_compat = isempty(augment_platform_block) ? DEFAULT_JLLWRAPPERS_VERSION_SPEC : "1.4.0"
     project = Pkg.Types.Project(build_project_dict(name, build_version, dependencies, julia_compat; jllwrappers_compat, lazy_artifacts, augment_platform_block))
+    project_file = joinpath(mktempdir(), "Project.toml")
+    Pkg.Types.write_project(project, project_file)
     errors = setdiff(RegistryTools.registrator_errors, [:version_less_than_all_existing])
     reg_branch = RegistryTools.register(
         "https://github.com/$(deploy_repo).git",
-        project,
+        project_file,
         wrapper_tree_hash;
         registry=registry_url,
         cache=cache,