Bump pyopenssl from 19.0.0 to 19.1.0 (pypi#7014)

Bumps [pyopenssl](https://github.com/pyca/pyopenssl) from 19.0.0 to 19.1.0.
- [Release notes](https://github.com/pyca/pyopenssl/releases)
- [Changelog](https://github.com/pyca/pyopenssl/blob/master/CHANGELOG.rst)
- [Commits](pyca/pyopenssl@19.0.0...19.1.0)

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

Author: dependabot-preview[bot]

requirements/main.txt

@@ -458,9 +458,9 @@ pynacl==1.3.0 \
     --hash=sha256:bd4ecb473a96ad0f90c20acba4f0bf0df91a4e03a1f4dd6a4bdc9ca75aa3a715 \
     --hash=sha256:e2da3c13307eac601f3de04887624939aca8ee3c9488a0bb0eca4fb9401fc6b1 \
     --hash=sha256:f67814c38162f4deb31f68d590771a29d5ae3b1bd64b75cf232308e5c74777e0
-pyopenssl==19.0.0 \
-    --hash=sha256:aeca66338f6de19d1aa46ed634c3b9ae519a64b458f8468aec688e7e3c20f200 \
-    --hash=sha256:c727930ad54b10fc157015014b666f2d8b41f70c0d03e83ab67624fd3dd5d1e6
+pyopenssl==19.1.0 \
+    --hash=sha256:621880965a720b8ece2f1b2f54ea2071966ab00e2970ad2ce11d596102063504 \
+    --hash=sha256:9a24494b2602aaf402be5c9e30a0b82d4a5c67528fe8fb475e3f3bc00dd69507
 pyparsing==2.4.5 \
     --hash=sha256:20f995ecd72f2a1f4bf6b072b63b22e2eb457836601e76d6e5dfcd75436acc1f \
     --hash=sha256:4ca62001be367f01bd3e92ecbb79070272a9d4964dce6a48a82ff0b8bc7e683a