fix(docs): downgrade to @types/[email protected] to fix typings error when generating docs

Author: christopherthielen

package.json

@@ -78,7 +78,7 @@
     "angular": ">=1.2.0"
   },
   "devDependencies": {
-    "@types/angular": "^1.6.43",
+    "@types/angular": "=1.6.25",
     "@types/angular-animate": "^1.5.9",
     "@types/angular-mocks": "^1.5.11",
     "@types/jasmine": "^2.8.6",

yarn.lock

@@ -20,14 +20,10 @@
   dependencies:
     "@types/angular" "*"
 
-"@types/angular@*":
+"@types/angular@*", "@types/angular@=1.6.25":
   version "1.6.25"
   resolved "https://registry.yarnpkg.com/@types/angular/-/angular-1.6.25.tgz#d403e94b40e06af3d9b76da5031795a9b929d08a"
 
-"@types/angular@^1.6.43":
-  version "1.6.43"
-  resolved "https://registry.yarnpkg.com/@types/angular/-/angular-1.6.43.tgz#6235ef416053a86302970717510a936d889cbb9a"
-
 "@types/estree@*", "@types/[email protected]":
   version "0.0.38"
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.38.tgz#c1be40aa933723c608820a99a373a16d215a1ca2"