Show number of pruned ec2 instances in dashboard #3172

Job	Run time
grpc	24m 5s
haproxy	3m 11s
ntp	2m 3s
OpenLDAP	16m 56s
Python main	3m 35s
Python releases (FIPS=0 OPENSSL_IN_CRT=0)	12m 8s
socat	6m 34s
Python releases (FIPS=1 OPENSSL_IN_CRT=0)	12m 10s
tcpdump	1m 44s
Python releases (FIPS=0 OPENSSL_IN_CRT=1)	11m 44s
Python releases (FIPS=1 OPENSSL_IN_CRT=1)	12m 15s
tpm2-tss	3m 32s
trousers	1m 11s
amazon-corretto-crypto-provider	17m 43s
bind9	5m 2s
libevent	27m 52s
openvpn	3m 48s
strongswan	1m 41s
	2h 47m 14s

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