Add benchmarks for clipperhouse/rate

[clipperhouse]

Hi Seth! Nice work here. I am working on a new Go rate limiter and would like to add to your benchmarks.

My local run:

go test -bench=.
goos: darwin
goarch: arm64
pkg: github.com/sethvargo/go-limiter/benchmarks
cpu: Apple M2
BenchmarkClipperhouseMemory/memory/serial-8  	15701103	        76.72 ns/op	       0 B/op	       0 allocs/op
BenchmarkClipperhouseMemory/memory/parallel-8         	51872358	        21.91 ns/op	       0 B/op	       0 allocs/op
BenchmarkSethVargoMemory/memory/serial-8              	20293608	        58.64 ns/op
BenchmarkSethVargoMemory/memory/parallel-8            	10464970	       114.5 ns/op
BenchmarkSethVargoMemory/sweep/serial-8               	19953289	        58.98 ns/op
BenchmarkSethVargoMemory/sweep/parallel-8             	10245894	       116.1 ns/op
--- FAIL: BenchmarkSethVargoRedis
    sethvargo_test.go:101: missing REDIS_HOST
BenchmarkThrottled/memory/serial-8                    	13697444	        87.68 ns/op
BenchmarkThrottled/memory/parallel-8                  	 6532964	       183.1 ns/op
BenchmarkThrottled/sweep/serial-8                     	14031770	        85.76 ns/op
BenchmarkThrottled/sweep/parallel-8                   	 9576992	       125.2 ns/op
BenchmarkTollbooth/memory/serial-8                    	 5704026	       211.0 ns/op
BenchmarkTollbooth/memory/parallel-8                  	 3270052	       367.9 ns/op
BenchmarkTollbooth/sweep/serial-8                     	 4262370	       299.1 ns/op
BenchmarkTollbooth/sweep/parallel-8                   	 2586741	       457.4 ns/op
BenchmarkUber/memory/serial-8                         	21398766	        53.33 ns/op
BenchmarkUber/memory/parallel-8                       	 4962492	       252.1 ns/op
BenchmarkUlule/memory/serial-8                        	 7339310	       144.9 ns/op
BenchmarkUlule/memory/parallel-8                      	 8083900	       161.7 ns/op

If this PR interests you, you’ll want to run your own benchmarks (I didn’t bother with Redis).

And, go.mod has some unrelated changes, feel free to accept or reject. Cheers.

[clipperhouse]

Update to latest version of clipperhouse/rate. Let me know if interested @sethvargo. Cheers.

goos: darwin
goarch: arm64
pkg: github.com/sethvargo/go-limiter/benchmarks
cpu: Apple M2
BenchmarkClipperhouseMemory/memory/serial-8  	29023738	        41.93 ns/op	       0 B/op	       0 allocs/op
BenchmarkClipperhouseMemory/memory/parallel-8         	87043773	        13.82 ns/op	       0 B/op	       0 allocs/op
BenchmarkSethVargoMemory/memory/serial-8              	20131807	        59.23 ns/op
BenchmarkSethVargoMemory/memory/parallel-8            	10264122	       115.6 ns/op
BenchmarkSethVargoMemory/sweep/serial-8               	19818181	        59.96 ns/op
BenchmarkSethVargoMemory/sweep/parallel-8             	10199827	       117.4 ns/op
--- FAIL: BenchmarkSethVargoRedis
    sethvargo_test.go:101: missing REDIS_HOST
BenchmarkThrottled/memory/serial-8                    	13592701	        87.89 ns/op
BenchmarkThrottled/memory/parallel-8                  	 5915017	       202.6 ns/op
BenchmarkThrottled/sweep/serial-8                     	13921423	        85.86 ns/op
BenchmarkThrottled/sweep/parallel-8                   	 9530623	       125.0 ns/op
BenchmarkTollbooth/memory/serial-8                    	 5643465	       212.1 ns/op
BenchmarkTollbooth/memory/parallel-8                  	 3293569	       365.7 ns/op
BenchmarkTollbooth/sweep/serial-8                     	 4257783	       281.6 ns/op
BenchmarkTollbooth/sweep/parallel-8                   	 2549242	       467.2 ns/op
BenchmarkUber/memory/serial-8                         	22668900	        52.74 ns/op
BenchmarkUber/memory/parallel-8                       	 4895458	       237.9 ns/op
BenchmarkUlule/memory/serial-8                        	 8318709	       144.0 ns/op
BenchmarkUlule/memory/parallel-8                      	 7856142	       168.6 ns/op