Cannot build on TypeScript 4.1

[Half-Shot]

➜  matrix-appservice-bridge git:(hs/js-sdk-log) ✗ npm i

> matrix-appservice-bridge@2.3.1 prepare /home/will/git/matrix-appservice-bridge
> npm run build


> matrix-appservice-bridge@2.3.1 build /home/will/git/matrix-appservice-bridge
> tsc --project tsconfig.json

src/components/bridge-store.ts:32:9 - error TS2322: Type '() => Promise<unknown>' is not assignable to type '(objects: any[]) => Promise<any[]>'.
  Type 'Promise<unknown>' is not assignable to type 'Promise<any[]>'.
    Type 'unknown' is not assignable to type 'any[]'.

32         this.dbInsert = promisify(this.db.insert).bind(this.db);
           ~~~~~~~~~~~~~

src/components/bridge-store.ts:33:9 - error TS2322: Type '(arg1: any) => Promise<unknown>' is not assignable to type '(query: Record<string, unknown>, values: any, options: UpdateOptions) => Promise<number>'.
  Type 'Promise<unknown>' is not assignable to type 'Promise<number>'.
    Type 'unknown' is not assignable to type 'number'.

33         this.dbUpdate = promisify(this.db.update).bind(this.db);
           ~~~~~~~~~~~~~

src/components/bridge-store.ts:34:9 - error TS2322: Type '() => Promise<unknown>' is not assignable to type '(query: Record<string, unknown>, options: RemoveOptions) => Promise<number>'.
  Type 'Promise<unknown>' is not assignable to type 'Promise<number>'.

34         this.dbRemove = promisify(this.db.remove).bind(this.db);
           ~~~~~~~~~~~~~

src/utils/promiseutil.ts:27:9 - error TS2322: Type '(value: T | PromiseLike<T>) => void' is not assignable to type '(value?: T | undefined) => void'.
  Types of parameters 'value' and 'value' are incompatible.
    Type 'T | undefined' is not assignable to type 'T | PromiseLike<T>'.
      Type 'undefined' is not assignable to type 'T | PromiseLike<T>'.

27         resolve = res;
           ~~~~~~~


Found 4 errors.

npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! matrix-appservice-bridge@2.3.1 build: `tsc --project tsconfig.json`
npm ERR! Exit status 2
npm ERR! 
npm ERR! Failed at the matrix-appservice-bridge@2.3.1 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/will/.npm/_logs/2020-11-20T10_14_32_266Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! matrix-appservice-bridge@2.3.1 prepare: `npm run build`
npm ERR! Exit status 2
npm ERR! 
npm ERR! Failed at the matrix-appservice-bridge@2.3.1 prepare script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/will/.npm/_logs/2020-11-20T10_14_32_288Z-debug.log

[Half-Shot]

Fixed by #295