Merge pull request actions#57 from actions/update-versions-manifest-file

[versions-manifest] Update for release from 10/14/2020

Author: MaksimZhukov

versions-manifest.json

@@ -1,4 +1,50 @@
 [
+  {
+    "version": "3.10.0-alpha.1",
+    "stable": false,
+    "release_url": "https://github.com/actions/python-versions/releases/tag/3.10.0-alpha.1-84873",
+    "files": [
+      {
+        "filename": "python-3.10.0-alpha.1-darwin-x64.tar.gz",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://github.com/actions/python-versions/releases/download/3.10.0-alpha.1-84873/python-3.10.0-alpha.1-darwin-x64.tar.gz"
+      },
+      {
+        "filename": "python-3.10.0-alpha.1-linux-16.04-x64.tar.gz",
+        "arch": "x64",
+        "platform": "linux",
+        "platform_version": "16.04",
+        "download_url": "https://github.com/actions/python-versions/releases/download/3.10.0-alpha.1-84873/python-3.10.0-alpha.1-linux-16.04-x64.tar.gz"
+      },
+      {
+        "filename": "python-3.10.0-alpha.1-linux-18.04-x64.tar.gz",
+        "arch": "x64",
+        "platform": "linux",
+        "platform_version": "18.04",
+        "download_url": "https://github.com/actions/python-versions/releases/download/3.10.0-alpha.1-84873/python-3.10.0-alpha.1-linux-18.04-x64.tar.gz"
+      },
+      {
+        "filename": "python-3.10.0-alpha.1-linux-20.04-x64.tar.gz",
+        "arch": "x64",
+        "platform": "linux",
+        "platform_version": "20.04",
+        "download_url": "https://github.com/actions/python-versions/releases/download/3.10.0-alpha.1-84873/python-3.10.0-alpha.1-linux-20.04-x64.tar.gz"
+      },
+      {
+        "filename": "python-3.10.0-alpha.1-win32-x64.zip",
+        "arch": "x64",
+        "platform": "win32",
+        "download_url": "https://github.com/actions/python-versions/releases/download/3.10.0-alpha.1-84873/python-3.10.0-alpha.1-win32-x64.zip"
+      },
+      {
+        "filename": "python-3.10.0-alpha.1-win32-x86.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://github.com/actions/python-versions/releases/download/3.10.0-alpha.1-84873/python-3.10.0-alpha.1-win32-x86.zip"
+      }
+    ]
+  },
   {
     "version": "3.9.0",
     "stable": true,