Add blog post announcing the 2025 State of Rust survey#1717

Kobzol wants to merge 3 commits intorust-lang:mainrust-lang/blog.rust-lang.org:mainfrom

Kobzol:state-of-rust-2025-announcementKobzol/blog.rust-lang.org:state-of-rust-2025-announcementCopy head branch name to clipboard