relicense `shootout-fasta-redux.rs` to the shootout license

[TeXitoi]

See #14248

I propose to change the license of shootout-fasta-redux.rs

Non trivial contributors:

• @pcwalton: OK
• @alexcrichton: OK

Contributors appearing in git blame that are trivial (except artifacts as empty lines):

• @thestinger: OK
• @salemtalha: waiting for response
• @nikomatsakis: OK (MoCo employee)
• @kballard: OK

Contributors with removed and trivial contributions are not considered.

For the persons that are not in "OK" state, please respond to this issue saying:

I agree to relicense any previous contributions to http://github.com/rust-lang/rust according to the term of the Computer Language Benchmarks Game license (http://benchmarksgame.alioth.debian.org/license.php)

Then, I'll propose the corresponding PR.

Thanks.

[TeXitoi]

@salemtalha ping

[salemtalha]

I agree to relicense any previous contributions to http://github.com/rust-lang/rust according to the term of the Computer Language Benchmarks Game license (http://benchmarksgame.alioth.debian.org/license.php)