Bump soupsieve from 2.7 to 2.8.3 in /test_package/nbconvert

Bumps [soupsieve](https://github.com/facelessuser/soupsieve) from 2.7 to 2.8.3.
- [Release notes](https://github.com/facelessuser/soupsieve/releases)
- [Commits](facelessuser/soupsieve@2.7...2.8.3)

---
updated-dependencies:
- dependency-name: soupsieve
  dependency-version: 2.8.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

test_package/nbconvert/env/darwin.txt

@@ -62,7 +62,7 @@ rpds-py==0.26.0
     #   referencing
 six==1.17.0
     # via python-dateutil
-soupsieve==2.7
+soupsieve==2.8.3
     # via beautifulsoup4
 tinycss2==1.4.0
     # via bleach

test_package/nbconvert/env/linux.txt

@@ -62,7 +62,7 @@ rpds-py==0.26.0
     #   referencing
 six==1.17.0
     # via python-dateutil
-soupsieve==2.7
+soupsieve==2.8.3
     # via beautifulsoup4
 tinycss2==1.4.0
     # via bleach

test_package/nbconvert/env/win32.txt

@@ -64,7 +64,7 @@ rpds-py==0.26.0
     #   referencing
 six==1.17.0
     # via python-dateutil
-soupsieve==2.7
+soupsieve==2.8.3
     # via beautifulsoup4
 tinycss2==1.4.0
     # via bleach