Rollup merge of #141744 - GrigorenkoPV:ip_from, r=Amanieu

Stabilize `ip_from`

Tracking issue: rust-lang/rust#131360

Stabilizes and const-stabilizes the following APIs:
```rust
// core::net
impl Ipv4Addr {
    pub const fn from_octets(octets: [u8; 4]) -> Ipv4Addr;
}
impl Ipv6Addr {
    pub const fn from_octets(octets: [u8; 16]) -> Ipv6Addr;
    pub const fn from_segments(segments: [u16; 8]) -> Ipv6Addr;
}
```

Closes rust-lang/rust#131360

```@rustbot``` label +needs-fcp

Author: Zalathar