Regression in v10.1.0 #258

Error: PollingBlockTracker - encountered an error while attempting to update latest block:
TypeError: this._provider.request is not a function
    at PollingBlockTracker._fetchLatestBlock (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/node_modules/@metamask/eth-block-tracker/src/PollingBlockTracker.ts:275:43)
    at PollingBlockTracker._updateLatestBlock (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/node_modules/@metamask/eth-block-tracker/src/PollingBlockTracker.ts:258:36)
    at PollingBlockTracker._updateAndQueue (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/node_modules/@metamask/eth-block-tracker/src/PollingBlockTracker.ts:292:18)
    at PollingBlockTracker._start (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/node_modules/@metamask/eth-block-tracker/src/PollingBlockTracker.ts:249:10)
    at PollingBlockTracker._maybeStart (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/node_modules/@metamask/eth-block-tracker/src/PollingBlockTracker.ts:166:10)
    at PollingBlockTracker._onNewListener (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/node_modules/@metamask/eth-block-tracker/src/PollingBlockTracker.ts:146:12)
    at safeApply (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/node_modules/@metamask/safe-event-emitter/index.ts:10:13)
    at PollingBlockTracker.emit (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/node_modules/@metamask/safe-event-emitter/index.ts:63:7)
    at _addListener (node:events:560:14)
    at PollingBlockTracker.addListener (node:events:609:10)
    at PollingBlockTracker.once (node:events:653:8)
    at /home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/test/util.js:50:50
    at new Promise (<anonymous>)
    at Object.trackNextBlock (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/test/util.js:50:12)
    at deployLogEchoContract (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/test/util.js:149:15)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at PollingBlockTracker._updateAndQueue (/home/runner/work/eth-json-rpc-filters/eth-json-rpc-filters/node_modules/@metamask/eth-block-tracker/src/PollingBlockTracker.ts:294:22)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
Error: PollingBlockTracker - encountered an error while attempting to upda