External stdlibs: stop using the unauthenticated git:// protocol in the external stdlib URLs (#42906)

(cherry picked from commit 7eba9c1)

Author: DilumAluthge

stdlib/ArgTools.version

@@ -1,4 +1,4 @@
 ARGTOOLS_BRANCH = master
 ARGTOOLS_SHA1 = fa878696ff2ae4ba7ca9942bf9544556c0d86ce4
-ARGTOOLS_GIT_URL := git://github.com/JuliaIO/ArgTools.jl.git
+ARGTOOLS_GIT_URL := https://github.com/JuliaIO/ArgTools.jl.git
 ARGTOOLS_TAR_URL = https://api.github.com/repos/JuliaIO/ArgTools.jl/tarball/$1

stdlib/Downloads.version

@@ -1,4 +1,4 @@
 DOWNLOADS_BRANCH = release-1.4
 DOWNLOADS_SHA1 = b07b4cf3b20b77faa7efbe29c0adfa8b4b7ee8d8
-DOWNLOADS_GIT_URL := git://github.com/JuliaLang/Downloads.jl.git
+DOWNLOADS_GIT_URL := https://github.com/JuliaLang/Downloads.jl.git
 DOWNLOADS_TAR_URL = https://api.github.com/repos/JuliaLang/Downloads.jl/tarball/$1

stdlib/LibCURL.version

@@ -1,4 +1,4 @@
 LIBCURL_BRANCH = master
 LIBCURL_SHA1 = 8310487053915d5c995513f569ad85ba65c3544f
-LIBCURL_GIT_URL := git://github.com/JuliaWeb/LibCURL.jl.git
+LIBCURL_GIT_URL := https://github.com/JuliaWeb/LibCURL.jl.git
 LIBCURL_TAR_URL = https://api.github.com/repos/JuliaWeb/LibCURL.jl/tarball/$1

stdlib/NetworkOptions.version

@@ -1,4 +1,4 @@
 NETWORKOPTIONS_BRANCH = master
 NETWORKOPTIONS_SHA1 = a251de1e1c8ce4edc351d0f05233ba7fe7d2c27a
-NETWORKOPTIONS_GIT_URL := git://github.com/JuliaLang/NetworkOptions.jl.git
+NETWORKOPTIONS_GIT_URL := https://github.com/JuliaLang/NetworkOptions.jl.git
 NETWORKOPTIONS_TAR_URL = https://api.github.com/repos/JuliaLang/NetworkOptions.jl/tarball/$1

stdlib/Pkg.version

@@ -1,4 +1,4 @@
 PKG_BRANCH = release-1.6
 PKG_SHA1 = 3d41ca188d72e1dc1862e780f31153d629d6a3dd
-PKG_GIT_URL := git://github.com/JuliaLang/Pkg.jl.git
+PKG_GIT_URL := https://github.com/JuliaLang/Pkg.jl.git
 PKG_TAR_URL = https://api.github.com/repos/JuliaLang/Pkg.jl/tarball/$1

stdlib/Statistics.version

@@ -1,4 +1,4 @@
 STATISTICS_BRANCH = master
 STATISTICS_SHA1 = 4b3ef9aaa79350510ca0be395458f66051c2f92d
-STATISTICS_GIT_URL := git://github.com/JuliaLang/Statistics.jl.git
+STATISTICS_GIT_URL := https://github.com/JuliaLang/Statistics.jl.git
 STATISTICS_TAR_URL = https://api.github.com/repos/JuliaLang/Statistics.jl/tarball/$1

stdlib/Tar.version

@@ -1,4 +1,4 @@
 TAR_BRANCH = release-1.9
 TAR_SHA1 = 2c86131a240bf06b9d4fa4bd813d66ea4bb1d7ae
-TAR_GIT_URL := git://github.com/JuliaIO/Tar.jl.git
+TAR_GIT_URL := https://github.com/JuliaIO/Tar.jl.git
 TAR_TAR_URL = https://api.github.com/repos/JuliaIO/Tar.jl/tarball/$1