False positive: MPL-2.0 detected in dnspython README.md

### Description

Scanning the dnspython v2.6.1 README.md reports ISC AND MPL-2.0.
The file only contains an ISC license badge/link:
[](https://opensource.org/licenses/ISC)
There is no MPL-2.0 reference in the content.
This seems to come from the mpl-2.0_url_badge.RULE incorrectly matching the badge/link.

### How To Reproduce

git clone --depth=1 --branch v2.6.1 https://github.com/rthalley/dnspython.git
cd dnspython
scancode --license --json-pp result.json README.md

### System configuration

OS: macOS 15.6.1 (x86_64)
ScanCode Toolkit version: 32.4.1
Installation method: pip