Merge #484

484: update dependencies / lockfile r=mkroening a=striezel

Updating cortex-a v7.2.0 -> v7.4.0
Updating getrandom v0.2.5 -> v0.2.7
Updating libc v0.2.121 -> v0.2.126
Updating memchr v2.4.1 -> v2.5.0
Updating num-complex v0.4.0 -> v0.4.2
Updating num-integer v0.1.44 -> v0.1.45
Updating num-iter v0.1.42 -> v0.1.43
Updating num-rational v0.4.0 -> v0.4.1
Updating num_threads v0.1.5 -> v0.1.6
Updating once_cell v1.12.1 -> v1.13.0
Updating paste v1.0.6 -> v1.0.7
Updating proc-macro2 v1.0.36 -> v1.0.40
Updating quote v1.0.17 -> v1.0.20
Updating redox_syscall v0.2.12 -> v0.2.13
Updating syn v1.0.89 -> v1.0.98
  Adding unicode-ident v1.0.1
Removing unicode-xid v0.2.2
Updating wasi v0.10.2+wasi-snapshot-preview1 -> v0.11.0+wasi-snapshot-preview1

Co-authored-by: Dirk Stolle <striezel-dev@web.de>