asim: revert accidental change to write workload

It was accidentally turned into a read-only workload.

Author: tbg

pkg/kv/kvserver/asim/tests/testdata/non_rand/mma_high_cpu_unable_to_shed_leases.txt

@@ -33,15 +33,17 @@ gen_ranges ranges=25 min_key=0 max_key=10000 placement_type=replica_placement
 {s1,s2,s4:*}:6
 {s1,s3:*,s5}:6
 
-gen_load rate=1000 rw_ratio=1.0 min_key=0 max_key=10000 raft_cpu_per_write=500000
+gen_load rate=1000 rw_ratio=0 min_key=0 max_key=10000 raft_cpu_per_write=500000
 ----
 
 eval duration=30m samples=1 seed=42 cfgs=(mma-only) metrics=(cpu,write_bytes_per_second,replicas,leases)
 ----
+cpu#1: last:  [s1=260292000, s2=300156000, s3=320067000, s4=299992333, s5=319992666] (stddev=21813256.71, mean=300099999.80, sum=1500499999)
 leases#1: first: [s1=0, s2=7, s3=6, s4=6, s5=6] (stddev=2.53, mean=5.00, sum=25)
 leases#1: last:  [s1=0, s2=7, s3=6, s4=6, s5=6] (stddev=2.53, mean=5.00, sum=25)
 replicas#1: first: [s1=25, s2=13, s3=13, s4=12, s5=12] (stddev=5.02, mean=15.00, sum=75)
-replicas#1: last:  [s1=25, s2=13, s3=13, s4=12, s5=12] (stddev=5.02, mean=15.00, sum=75)
-artifacts[mma-only]: f52741fee576b37d
+replicas#1: last:  [s1=13, s2=15, s3=16, s4=15, s5=16] (stddev=1.10, mean=15.00, sum=75)
+write_bytes_per_second#1: last:  [s1=520, s2=600, s3=640, s4=599, s5=639] (stddev=43.64, mean=599.60, sum=2998)
+artifacts[mma-only]: f4b2b302e185d34e
 
 # TODO(kvoli): Case (2)