Bump imagesize from 1.2.0 to 1.3.0

Bumps [imagesize](https://github.com/shibukawa/imagesize_py) from 1.2.0 to 1.3.0.
- [Release notes](https://github.com/shibukawa/imagesize_py/releases)
- [Commits](shibukawa/imagesize_py@1.2.0...1.3.0)

---
updated-dependencies:
- dependency-name: imagesize
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

docs-requirements.txt

@@ -16,7 +16,7 @@ docutils==0.17.1
     # via sphinx
 idna==3.3
     # via requests
-imagesize==1.2.0
+imagesize==1.3.0
     # via sphinx
 jinja2==3.0.2
     # via sphinx

test-requirements.txt

@@ -26,7 +26,7 @@ docutils==0.17.1
     # via sphinx
 idna==3.3
     # via requests
-imagesize==1.2.0
+imagesize==1.3.0
     # via sphinx
 iniconfig==1.1.1
     # via pytest