chore(deps): update external/libzmq digest to 0ed7a08 #49

Job	Run time
lib_android (monero)	26m 21s
lib_android (wownero)	24m 31s
lib_darwin (monero)	13m 29s
lib_darwin (wownero)	13m 42s
ios build (monero)	10m 39s
ios build (wownero)	10m 52s
lib_linux (monero)	2m 37s
lib_linux (wownero)	2m 55s
macos build (monero)	3m 3s
macos build (wownero)	3m 31s
lib_mingw (monero)	3m 53s
lib_mingw (wownero)	3m 18s
lib_sailfishos_aarch64 (monero)	3m 16s
lib_sailfishos_aarch64 (wownero)	3m 51s
lib_sailfishos_i486 (monero)	2m 4s
lib_sailfishos_i486 (wownero)	2m 34s
wallet_cake_android	20m 20s
wallet_xmruw_android (monero)	6m 36s
wallet_xmruw_android (wownero)	6m 53s
comment on pr	6s
	2h 44m 31s

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