chore: import secp256k1 for amino parsing #2693

Job	Run time
build (1.20.x, GOARCH=amd64 GOOS=linux, gno)	26s
test (1.20.x, _test.cmd)	1m 6s
build (1.20.x, GOARCH=wasm GOOS=js, gno)	28s
test (1.20.x, _test.pkg)	47s
build (1.21.x, GOARCH=amd64 GOOS=linux, gno)	27s
test (1.20.x, _test.gnolang.native)	44s
build (1.21.x, GOARCH=wasm GOOS=js, gno)	26s
test (1.20.x, _test.gnolang.stdlibs)	1m 4s
test (1.20.x, _test.gnolang.realm)	1m 3s
test (1.20.x, _test.gnolang.pkg0)	1m 47s
test (1.20.x, _test.gnolang.pkg1)	6m 13s
test (1.20.x, _test.gnolang.pkg2)	4m 13s
test (1.20.x, _test.gnolang.other)	40s
test (1.21.x, _test.cmd)	1m 7s
test (1.21.x, _test.pkg)	55s
test (1.21.x, _test.gnolang.native)	35s
test (1.21.x, _test.gnolang.stdlibs)	59s
test (1.21.x, _test.gnolang.realm)	43s
test (1.21.x, _test.gnolang.pkg0)	1m 40s
test (1.21.x, _test.gnolang.pkg1)	6m 9s
test (1.21.x, _test.gnolang.pkg2)	4m 9s
test (1.21.x, _test.gnolang.other)	32s
upload-coverage	19s
	36m 32s

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