Update lcov to its latest version 1.14
Resolves T9003
Changelog:
- GCC 8 support
- Options to filter out source files during data collection based on regular expressions
- Option to show number of missed lines, functions and branches
- Configuration file option for --demangle-cpp
- Unconditional HTML anchors in source view
- SOURCE_DATA_EPOCH support for reproducible builds
- Multiple bug fixes and performance improvements
Full changelog can be found here.