lang/rust: Update to 1.44.0
- Remove devel/cargo-tree since it is now integrated into cargo
- Add patch to fix build with LibreSSL 3.1.x and 3.2.0 [1]
- Force rebuild all consumers to catch regressions early
Changes: https://blog.rust-lang.org/2020/06/04/Rust-1.44.0.html
PR: 246332 [1]
Tested by: mikael, tobik
With hat: rust
Differential Revision: https://reviews.freebsd.org/D25099