Upgrade elasticsearchjs to 15.4

package.json

@@ -153,7 +153,7 @@
     "d3-cloud": "1.2.1",
     "del": "^3.0.0",
     "dragula": "3.7.0",
-    "elasticsearch": "^15.2.0",
+    "elasticsearch": "^15.4.0",
     "elasticsearch-browser": "^15.2.0",
     "encode-uri-query": "1.0.0",
     "execa": "^1.0.0",
@@ -427,4 +427,4 @@
     "node": "10.15.1",
     "yarn": "^1.10.1"
   }
-}
+}

yarn.lock

@@ -7521,6 +7521,15 @@ elasticsearch@^15.2.0:
     chalk "^1.0.0"
     lodash "^4.17.10"
 
+elasticsearch@^15.4.0:
+  version "15.4.0"
+  resolved "https://registry.yarnpkg.com/elasticsearch/-/elasticsearch-15.4.0.tgz#7e9a90733f4a7f2183bc0a25acf7c6c6d31c127f"
+  integrity sha512-YHtmNkzz8uePiVYGUbJDjkwHs7eDFDn8aFZ9JA/YFYvHWgN/ILBpFTp1KhJ9EnQAF4me0itTdFfbqgxy+MXz5g==
+  dependencies:
+    agentkeepalive "^3.4.1"
+    chalk "^1.0.0"
+    lodash "^4.17.10"
+
 electron-to-chromium@^1.3.103:
   version "1.3.108"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.108.tgz#2e79a6fcaa4b3e7c75abf871505bda8e268c910e"
@@ -23731,25 +23740,7 @@ yargs@^11.0.0:
     y18n "^3.2.1"
     yargs-parser "^9.0.2"
 
-yargs@^12.0.1:
-  version "12.0.5"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
-  integrity sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==
-  dependencies:
-    cliui "^4.0.0"
-    decamelize "^1.2.0"
-    find-up "^3.0.0"
-    get-caller-file "^1.0.1"
-    os-locale "^3.0.0"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^2.0.0"
-    which-module "^2.0.0"
-    y18n "^3.2.1 || ^4.0.0"
-    yargs-parser "^11.1.1"
-
-yargs@^12.0.5:
+yargs@^12.0.1, yargs@^12.0.5:
   version "12.0.5"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
   integrity sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==