Pin prompt-toolkit version (#5288)

* Update pyproject.toml

* Create pin-ptk.rst

* chore: strip whitespace

---------

Co-authored-by: Gil Forsyth <gil@forsyth.dev>

.github/pull_request_template.md

@@ -1,11 +1,11 @@
-<!--- 
+<!---
 
-Thanks for opening a PR on xonsh! 
+Thanks for opening a PR on xonsh!
 
 Please do this:
 
 1. Include a news file with your PR (https://xon.sh/devguide.html#changelog).
-2. Add the documentation for your feature into `/docs`. 
+2. Add the documentation for your feature into `/docs`.
 3. Add the example of usage or before-after behavior.
 4. Mention the issue that this PR is addressing e.g. `#1234`.
 

news/pin-ptk.rst

@@ -0,0 +1,23 @@
+**Added:**
+
+* <news item>
+
+**Changed:**
+
+* Pinned prompt-toolkit version 3.0.29-3.0.40 to workaround upstream issue. More info in issue 5241.
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* <news item>
+
+**Security:**
+
+* <news item>

pyproject.toml

@@ -83,7 +83,7 @@ changelog = "https://github.com/xonsh/xonsh/blob/main/CHANGELOG.rst"
 
 [project.optional-dependencies]
 ptk = [
-    "prompt-toolkit>=3.0.29",
+    "prompt-toolkit>=3.0.29,<3.0.41",
     "pyperclip",
 ]
 pygments = ["pygments>=2.2"]
@@ -110,7 +110,7 @@ test = [
     "pytest-timeout",
     "pytest-subprocess",
     "pytest-rerunfailures",
-    "prompt-toolkit>=3.0.29",
+    "prompt-toolkit>=3.0.29,<3.0.41",
     "pygments>=2.2",
     "coverage>=5.3.1",
     "pyte>=0.8.0",