Update PhiloxRNG.jl to v1.1.1 and fix counter overflow with UInt64

[nhz2]

Fixes #713
This PR uses the following scheme to avoid rng stream collisions.

Philox4x32-10 takes a 128-bit counter (ctr0, ctr1) and a 64-bit key. The scheme is:

• key = the 64-bit seed (identifies the RNG instance).
• ctr1 = a 64-bit per-launch counter, incremented host-side after each kernel that consumes the RNG.
• ctr0 = a 64-bit counter gid + nthreads * localcounter, varying inside the kernel: gid partitions across threads, localcounter increments per Philox call from that thread. This allows for over 2^32 threads with fewer Philox calls per thread, or over 2^32 Philox calls per thread with fewer threads without having a collision.

ctr1 is also randomized when seeding from a RandomDevice to make collisions less likely.

CC @maleadt