Update trio requirement from >=0.14,<0.21 to >=0.14,<0.22

Updates the requirements on [trio](https://github.com/python-trio/trio) to permit the latest version.
- [Release notes](https://github.com/python-trio/trio/releases)
- [Commits](https://github.com/python-trio/trio/compare/v0.14.0...v0.21.0)

---
updated-dependencies:
- dependency-name: trio
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/pyproject.toml b/pyproject.toml
index e287d3a..b33e4cb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ requests-toolbelt = {version="^0.9.1", optional=true}
 requests = {version="^2.23.0", optional=true}
 idna = {version=">=2.1,<4.0", optional=true}
 cryptography = {version=">=2.6,<38.0", optional=true}
-trio = {version=">=0.14,<0.21", optional=true}
+trio = {version=">=0.14,<0.22", optional=true}
 curio = {version="^1.2", optional=true}
 sniffio = {version="^1.1", optional=true}
 wmi = {version="^1.5.1", optional=true}