fix: revert to http-request-plus@0.8

Fixes #4774

There appears to be an issue with `pump` in `http-request-plus@0.9` which leads backups to never finish.

packages/xen-api/package.json

@@ -39,7 +39,7 @@
     "debug": "^4.0.1",
     "event-to-promise": "^0.8.0",
     "exec-promise": "^0.7.0",
-    "http-request-plus": "^0.9.1",
+    "http-request-plus": "^0.8.0",
     "jest-diff": "^24.0.0",
     "json-rpc-protocol": "^0.13.1",
     "kindof": "^2.0.0",

packages/xo-server/package.json

@@ -74,7 +74,7 @@
     "helmet": "^3.9.0",
     "highland": "^2.11.1",
     "http-proxy": "^1.16.2",
-    "http-request-plus": "^0.9.1",
+    "http-request-plus": "^0.8.0",
     "http-server-plus": "^0.11.0",
     "human-format": "^0.10.0",
     "is-redirect": "^1.0.0",

yarn.lock

@@ -7202,6 +7202,15 @@ http-proxy@^1.16.2:
     follow-redirects "^1.0.0"
     requires-port "^1.0.0"
 
+http-request-plus@^0.8.0:
+  version "0.8.0"
+  resolved "https://registry.yarnpkg.com/http-request-plus/-/http-request-plus-0.8.0.tgz#9d883be7122c96124eb5e5c96bee9dfba8abc338"
+  integrity sha512-nSx7ebXOnHFgwi67YgkdEoHpjx/OH4wOkiHgqUnLsqTRlCu1DDeE+QLRiOI1XnSkqk2Y0Srmg5b1P9ckAPuETw==
+  dependencies:
+    is-redirect "^1.0.0"
+    lodash "^4.17.4"
+    promise-toolbox "^0.12.1"
+
 http-request-plus@^0.9.1:
   version "0.9.1"
   resolved "https://registry.yarnpkg.com/http-request-plus/-/http-request-plus-0.9.1.tgz#ba724da3dabb48eb7962e83aec5f5b3cd7291166"