Update jupytext requirement from ~=1.11.2 to >=1.11.2,<1.15.0 (#509)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -75,7 +75,7 @@ rtd = [
     "coconut>=1.4.3,<2.3.0",
     "ipykernel~=5.5",
     "ipywidgets",
-    "jupytext~=1.11.2",
+    "jupytext>=1.11.2,<1.15.0",
     "matplotlib",
     "numpy",
     "pandas",
@@ -95,7 +95,7 @@ testing = [
     # see https://ipython.readthedocs.io/en/stable/whatsnew/version8.html#restore-line-numbers-for-input
     "ipython!=8.1.0,<8.5",
     "ipywidgets>=8",
-    "jupytext~=1.11.2",
+    "jupytext>=1.11.2,<1.15.0",
     "matplotlib>=3.5.3,<3.6",  # TODO mpl 3.6 subtly changes output of test regressions
     "nbdime",
     "numpy",