Bump dependencies

[arl]

Bump ebitengine and msgp dependencies.

Recreate default.pgo and obtain a 5% speedup in terms of FPS.

benchstat bench.nopgo bench.pgo
goos: linux
goarch: amd64
pkg: nestor/emu
cpu: 12th Gen Intel(R) Core(TM) i7-1270P
    	│ bench.nopgo │             bench.pgo             │
    	│   sec/op    │   sec/op     vs base              │
CPUSpeed-16   884.4m ± 1%   835.3m ± 1%  -5.55% (p=0.002 n=6)

    	│ bench.nopgo │            bench.pgo             │
    	│  frames/s   │  frames/s   vs base              │
CPUSpeed-16    339.2 ± 1%   359.1 ± 1%  +5.88% (p=0.002 n=6)

    	│ bench.nopgo  │           bench.pgo           │
    	│     B/op     │     B/op      vs base         │
CPUSpeed-16   5.092Mi ± 0%   5.092Mi ± 0%  ~ (p=0.727 n=6)

    	│ bench.nopgo │          bench.pgo           │
    	│  allocs/op  │  allocs/op   vs base         │
CPUSpeed-16   659.2k ± 0%   659.2k ± 0%  ~ (p=1.000 n=6)