build: upgrade to yarn 3

Also upgrades various frontend dependencies.

We can't upgrade to typescript 4.5 yet, because
https://github.com/yarnpkg/berry/pull/3760 is not released yet.

2 files changed, 2 insertions, 2 deletions

diff --git a/language-web/src/main/js/utils/PendingTask.ts b/language-web/src/main/js/utils/PendingTask.ts
index de59a99b..51b79fb0 100644
--- a/language-web/src/main/js/utils/PendingTask.ts
+++ b/language-web/src/main/js/utils/PendingTask.ts
@@ -9,7 +9,7 @@ export class PendingTask<T> {
 
   private resolved = false;
 
-  private timeout: NodeJS.Timeout | null;
+  private timeout: number | null;
 
   constructor(
     resolveCallback: (value: T) => void,
diff --git a/language-web/src/main/js/utils/Timer.ts b/language-web/src/main/js/utils/Timer.ts
index efde6633..8f653070 100644
--- a/language-web/src/main/js/utils/Timer.ts
+++ b/language-web/src/main/js/utils/Timer.ts
@@ -3,7 +3,7 @@ export class Timer {
 
   readonly defaultTimeout: number;
 
-  timeout: NodeJS.Timeout | null = null;
+  timeout: number | null = null;
 
   constructor(callback: () => void, defaultTimeout = 0) {
     this.callback = () => {