pixelfed/http-signatures-guzzlehttp: Guzzle 6 support for http-signatures library

kopia lustrzana https://github.com/pixelfed/http-signatures-guzzlehttp

Ruben de Vries 84239d4762 Update package to support Guzzle 6 and stop supporting old versions.		9 lat temu
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HttpSignatures	84239d4762 Update package to support Guzzle 6 and stop supporting old versions.	8 lat temu