[libtar] Enable asset caching. (#43415)

ports/libtar/portfile.cmake

@@ -1,9 +1,11 @@
-vcpkg_from_git(
-    OUT_SOURCE_PATH SOURCE_PATH
-    URL https://repo.or.cz/libtar.git
-    REF 6d0ab4c78e7a8305c36a0c3d63fd25cd1493de65 # latest on master
+vcpkg_download_distfile(ARCHIVE
+    URLS https://repo.or.cz/libtar.git/snapshot/6d0ab4c78e7a8305c36a0c3d63fd25cd1493de65.tar.gz
+    FILENAME libtar-6d0ab4c78e7a8305c36a0c3d63fd25cd1493de65.tar.gz
+    SHA512 907d98ea2bd2e2a43604243fc7fd6c252aa02c3fdd79e21f2a784adf821cb18107e6e23a25ad0c64329fbe84e859da5c807272759a8bcd85a37b929c80af4a13
 )
 
+vcpkg_extract_source_archive(SOURCE_PATH ARCHIVE "${ARCHIVE}")
+
 vcpkg_configure_make(
     SOURCE_PATH "${SOURCE_PATH}"
 )

ports/libtar/vcpkg.json

@@ -1,6 +1,7 @@
 {
   "name": "libtar",
   "version": "1.2.20",
+  "port-version": 1,
   "description": "libtar - C library for manipulating tar files",
   "homepage": "https://repo.or.cz/libtar.git",
   "supports": "!windows"

versions/baseline.json

@@ -5198,7 +5198,7 @@
     },
     "libtar": {
       "baseline": "1.2.20",
-      "port-version": 0
+      "port-version": 1
     },
     "libtasn1": {
       "baseline": "4.19.0",

versions/l-/libtar.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "52ef8acf2b8ff12c21e9a52b9e0f0d14d050f97e",
+      "version": "1.2.20",
+      "port-version": 1
+    },
     {
       "git-tree": "88cec24f0726abad060a2741dcd064b2698a886a",
       "version": "1.2.20",