Bump http-client version to 3.1.0 and update RELEASES.md

Co-authored-by: TingluoHuang <1750815+TingluoHuang@users.noreply.github.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@actions/http-client",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@actions/http-client",
-      "version": "3.0.0",
+      "version": "3.1.0",
       "license": "MIT",
       "dependencies": {
         "tunnel": "^0.0.6",