Bump cairosvg from 2.4.2 to 2.5.1

Bumps [cairosvg](https://github.com/Kozea/CairoSVG) from 2.4.2 to 2.5.1.
- [Release notes](https://github.com/Kozea/CairoSVG/releases)
- [Changelog](https://github.com/Kozea/CairoSVG/blob/master/NEWS.rst)
- [Commits](Kozea/CairoSVG@2.4.2...2.5.1)

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

Author: dependabot[bot]

Pipfile

@@ -45,7 +45,7 @@ tinycss2 = "==1.0.2"
 urllib3 = "==1.25.9"
 webencodings = "==0.5.1"
 Authlib = "==0.13"
-CairoSVG = "==2.4.2"
+CairoSVG = "==2.5.1"
 Flask-Mail = "==0.9.1"
 Flask-Migrate = "==2.5.3"
 Flask-SQLAlchemy = "==2.4.1"