Bump hackney from 1.19.1 to 1.20.1

Bumps [hackney](https://github.com/benoitc/hackney) from 1.19.1 to 1.20.1.
- [Release notes](https://github.com/benoitc/hackney/releases)
- [Changelog](https://github.com/benoitc/hackney/blob/master/NEWS.md)
- [Commits](benoitc/hackney@1.19.1...1.20.1)

---
updated-dependencies:
- dependency-name: hackney
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

mix.lock

@@ -20,7 +20,7 @@
   "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
   "floki": {:hex, :floki, "0.34.3", "5e2dcaec5d7c228ce5b1d3501502e308b2d79eb655e4191751a1fe491c37feac", [:mix], [], "hexpm", "9577440eea5b97924b4bf3c7ea55f7b8b6dce589f9b28b096cc294a8dc342341"},
   "gettext": {:hex, :gettext, "0.23.1", "821e619a240e6000db2fc16a574ef68b3bd7fe0167ccc264a81563cc93e67a31", [:mix], [{:expo, "~> 0.4.0", [hex: :expo, repo: "hexpm", optional: false]}], "hexpm", "19d744a36b809d810d610b57c27b934425859d158ebd56561bc41f7eeb8795db"},
-  "hackney": {:hex, :hackney, "1.19.1", "59de4716e985dd2b5cbd4954fa1ae187e2b610a9c4520ffcb0b1653c3d6e5559", [:rebar3], [{:certifi, "~>2.12.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.4.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "8aa08234bdefc269995c63c2282cf3cd0e36febe3a6bfab11b610572fdd1cad0"},
+  "hackney": {:hex, :hackney, "1.20.1", "8d97aec62ddddd757d128bfd1df6c5861093419f8f7a4223823537bad5d064e2", [:rebar3], [{:certifi, "~>2.12.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.4.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "fe9094e5f1a2a2c0a7d10918fee36bfec0ec2a979994cff8cfe8058cd9af38e3"},
   "html_entities": {:hex, :html_entities, "0.5.1", "1c9715058b42c35a2ab65edc5b36d0ea66dd083767bef6e3edb57870ef556549", [:mix], [], "hexpm", "30efab070904eb897ff05cd52fa61c1025d7f8ef3a9ca250bc4e6513d16c32de"},
   "html_sanitize_ex": {:hex, :html_sanitize_ex, "1.4.2", "c479398b6de798c03eb5d04a0a9a9159d73508f83f6590a00b8eacba3619cf4c", [:mix], [{:mochiweb, "~> 2.15", [hex: :mochiweb, repo: "hexpm", optional: false]}], "hexpm", "aef6c28585d06a9109ad591507e508854c5559561f950bbaea773900dd369b0e"},
   "idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"},