build(deps): bump canonicaljson from 1.5.0 to 1.6.0 in /requirements

Bumps [canonicaljson](https://github.com/matrix-org/python-canonicaljson) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/matrix-org/python-canonicaljson/releases)
- [Changelog](https://github.com/matrix-org/python-canonicaljson/blob/main/CHANGES.md)
- [Commits](matrix-org/python-canonicaljson@v1.5.0...v1.6.0)

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

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

requirements/requirements-ci.txt

@@ -96,7 +96,7 @@ bump2version==1.0.1
     # via -r requirements-dev.txt
 cachetools==4.2.4
     # via -r requirements-dev.txt
-canonicaljson==1.5.0
+canonicaljson==1.6.0
     # via
     #   -r requirements-dev.txt
     #   matrix-synapse
@@ -268,7 +268,6 @@ flask-restful==0.3.9
 frozendict==1.2
     # via
     #   -r requirements-dev.txt
-    #   canonicaljson
     #   matrix-synapse
 gevent==21.8.0
     # via

requirements/requirements-dev.txt

@@ -77,7 +77,7 @@ bump2version==1.0.1
     # via -r requirements-dev.in
 cachetools==4.2.4
     # via -r requirements.txt
-canonicaljson==1.5.0
+canonicaljson==1.6.0
     # via
     #   -r requirements.txt
     #   matrix-synapse
@@ -235,10 +235,7 @@ flask-opentracing==1.1.0
 flask-restful==0.3.9
     # via -r requirements.txt
 frozendict==1.2
-    # via
-    #   -r requirements.txt
-    #   canonicaljson
-    #   matrix-synapse
+    # via matrix-synapse
 gevent==21.8.0
     # via
     #   -r requirements.txt

requirements/requirements.txt

@@ -32,7 +32,7 @@ bitarray==1.2.1
     # via eth-account
 cachetools==4.2.4
     # via -r requirements.in
-canonicaljson==1.5.0
+canonicaljson==1.6.0
     # via -r requirements.in
 certifi==2019.3.9
     # via requests
@@ -128,8 +128,6 @@ flask-opentracing==1.1.0
     # via -r requirements.in
 flask-restful==0.3.9
     # via -r requirements.in
-frozendict==1.2
-    # via canonicaljson
 gevent==21.8.0
     # via -r requirements.in
 google-crc32c==1.1.2