fix: pin old version of LSP libraries for node <14 compatibility (#467)

package.json

@@ -46,8 +46,8 @@
     "semver": "^7.3.5",
     "tempy": "^1.0.1",
     "vscode-languageserver": "^7.0.0",
-    "vscode-languageserver-protocol": "^3.16.0",
-    "vscode-languageserver-textdocument": "^1.0.1",
+    "vscode-languageserver-protocol": "3.16.0",
+    "vscode-languageserver-textdocument": "1.0.4",
     "vscode-uri": "^3.0.2",
     "which": "^2.0.2"
   },

yarn.lock

@@ -1661,15 +1661,15 @@ [email protected]:
   resolved "https://registry.yarnpkg.com/vscode-jsonrpc/-/vscode-jsonrpc-6.0.0.tgz#108bdb09b4400705176b957ceca9e0880e9b6d4e"
   integrity sha512-wnJA4BnEjOSyFMvjZdpiOwhSq9uDoK8e/kpRJDTaMYzwlkrhG1fwDIZI94CLsLzlCK5cIbMMtFlJlfR57Lavmg==
 
-[email protected], vscode-languageserver-protocol@^3.16.0:
+[email protected]:
   version "3.16.0"
   resolved "https://registry.yarnpkg.com/vscode-languageserver-protocol/-/vscode-languageserver-protocol-3.16.0.tgz#34135b61a9091db972188a07d337406a3cdbe821"
   integrity sha512-sdeUoAawceQdgIfTI+sdcwkiK2KU+2cbEYA0agzM2uqaUy2UpnnGHtWTHVEtS0ES4zHU0eMFRGN+oQgDxlD66A==
   dependencies:
     vscode-jsonrpc "6.0.0"
     vscode-languageserver-types "3.16.0"
 
-vscode-languageserver-textdocument@^1.0.1:
+[email protected].4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/vscode-languageserver-textdocument/-/vscode-languageserver-textdocument-1.0.4.tgz#3cd56dd14cec1d09e86c4bb04b09a246cb3df157"
   integrity sha512-/xhqXP/2A2RSs+J8JNXpiiNVvvNM0oTosNVmQnunlKvq9o4mupHOBAnnzH0lwIPKazXKvAKsVp1kr+H/K4lgoQ==