Fix catch2 adapter mulit-line benchmark name parsing

[epompeii]

When a benchmark name is too long catch2 wraps the benchmark name:
benchmark-action/github-action-benchmark#55

Add this test file: https://github.com/benchmark-action/github-action-benchmark/blob/7bec15aacc831ab865c072311324173b9a61a3dc/test/data/extract/catch2_output.txt

For anyone here in the meantime, use this workaround:

As a workaround we can add #define CATCH_CONFIG_CONSOLE_WIDTH 200 (or any width needed) in the benchmark source to overwrite catch2's default output width of 80 characters to prevent long benchmark names wrapping.

benchmark-action/github-action-benchmark#46 (comment)