Elastic: Create legacy runner for proxy queries (grafana#67397)

* Elastic: Rename request to legacy request and call directly

* Apply content header directly in request

* Move legacy running queries to legacyqueryrunner

Author: ivanahuckova

.betterer.results

@@ -3979,6 +3979,21 @@ exports[`better eslint`] = {
       [0, 0, 0, "Unexpected any. Specify a different type.", "2"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "3"]
     ],
+    "public/app/plugins/datasource/elasticsearch/LegacyQueryRunner.ts:5381": [
+      [0, 0, 0, "Unexpected any. Specify a different type.", "0"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "1"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "2"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "3"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "4"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "5"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "6"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "7"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "8"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "9"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "10"],
+      [0, 0, 0, "Do not use any type assertions.", "11"],
+      [0, 0, 0, "Unexpected any. Specify a different type.", "12"]
+    ],
     "public/app/plugins/datasource/elasticsearch/QueryBuilder.test.ts:5381": [
       [0, 0, 0, "Unexpected any. Specify a different type.", "0"]
     ],
@@ -4056,22 +4071,7 @@ exports[`better eslint`] = {
       [0, 0, 0, "Unexpected any. Specify a different type.", "12"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "13"],
       [0, 0, 0, "Unexpected any. Specify a different type.", "14"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "15"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "16"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "17"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "18"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "19"],
-      [0, 0, 0, "Do not use any type assertions.", "20"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "21"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "22"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "23"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "24"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "25"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "26"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "27"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "28"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "29"],
-      [0, 0, 0, "Unexpected any. Specify a different type.", "30"]
+      [0, 0, 0, "Unexpected any. Specify a different type.", "15"]
     ],
     "public/app/plugins/datasource/elasticsearch/hooks/useStatelessReducer.ts:5381": [
       [0, 0, 0, "Do not use any type assertions.", "0"]