chore(e2e-tests): account for race condition in driver version log file test MONGOSH-1934 (#2287)

This test has been particularly flaky on macOS, so let's do the same thing
that the preceding test does and account for the fact that the log file
might not be flushed immediately before the output of the command is printed.

Author: addaleax

packages/e2e-tests/test/e2e.spec.ts

@@ -1494,12 +1494,14 @@ describe('e2e', function () {
               `connect(${JSON.stringify(connectionString)})`
             )
           ).to.include('test');
-          const log = await readLogfile();
-          expect(
-            log.filter(
-              (logEntry) => typeof logEntry.attr?.driver?.version === 'string'
-            )
-          ).to.have.lengthOf(1);
+          await eventually(async () => {
+            const log = await readLogfile();
+            expect(
+              log.filter(
+                (logEntry) => typeof logEntry.attr?.driver?.version === 'string'
+              )
+            ).to.have.lengthOf(1);
+          });
         });
       });