Update h2 to 0.12.1 - #940
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h2 0.12.1 decodes the header block of a HEADERS frame it rejects with a stream error. Before, a response that crossed hackney's RST_STREAM had its block dropped undecoded, the HPACK tables fell out of sync, and the next response on the shared connection failed with COMPRESSION_ERROR, closing it. The dead async consumer test answers the reset stream again, which is the case that failed on CI before the h2 fix.
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h2 0.12.1 (benoitc/erlang_h2#24) decodes the header block of a HEADERS frame it rejects with a stream error. Before, a response that crossed hackney's RST_STREAM had its block dropped undecoded, the HPACK tables fell out of sync, and the next response on the shared connection failed with COMPRESSION_ERROR, closing it. This showed up on #939's CI.
The dead async consumer test answers the reset stream again, which is the case that failed there.