Label: profile-request

[kmk3]

Hello, I created a "profile-request" label for issues/discussions that ask for
a new firejail profile. AFAIK these should only be posted on #1139, so the
label should help filter out the noise.

I added it to:

• Add a profile for Notable #4813

Examples without/with the filter:

• https://github.com/netblue30/firejail/discussions
• https://github.com/netblue30/firejail/discussions?discussions_q=-label%3Aprofile-request

Thoughts?