Merge #15866: test: Add missing syncwithvalidationinterfacequeue to wallet_import_rescan

Summary:
fa465e4da4 test: Add missing syncwithvalidationinterfacequeue to wallet_import_rescan (MarcoFalke)

Pull request description:

Fixes #15865

ACKs for commit fa465e:

promag:
  utACK fa465e4da4c7242d7edd6339747572d23a39ff98.

Tree-SHA512: efc1d82b92aefb1f0e6c54ed0a2d69c547cd9dee7ff8d57a665022fefce01bcf726d394f0665abe4fbd3451abf3cb08eed6ff45def831857f917a988e13a1055

Backport of Core PR15866

Test Plan: test_runner.py wallet_import_rescan

Reviewers: #bitcoin_abc, majcosta

Reviewed By: #bitcoin_abc, majcosta

Subscribers: majcosta

Differential Revision: https://reviews.bitcoinabc.org/D6953