feat: upgrade to ulmo

CHANGELOG.md

@@ -19,6 +19,13 @@ instructions, because git commits are used to generate release notes:
 
 <!-- scriv-insert-here -->
 
+<a id='changelog-21.0.0'></a>
+## v21.0.0 (2025-10-21)
+
+- [Improvement] Migrate from pylint and black to ruff. (by @Danyal-Faheem)
+
+- 💥[Feature] Upgrade to ulmo. (by @eemaanamir)
+
 <a id='changelog-20.0.0'></a>
 ## v20.0.0 (2025-06-05)
 

pyproject.toml

@@ -25,14 +25,14 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
-  "tutor>=20.0.0,<21.0.0",
+  "tutor>=21.0.0,<22.0.0",
 ]
 # these fields will be set by hatch_build.py
 dynamic = ["version"]
 
 [project.optional-dependencies]
 dev = [
-  "tutor[dev]>=20.0.0,<21.0.0",
+  "tutor[dev]>=21.0.0,<22.0.0",
   "ruff",
 ]
 

tutorcairn/__about__.py

@@ -1 +1 @@
-__version__ = "20.0.0"
+__version__ = "21.0.0"

tutorcairn/templates/cairn/build/cairn-superset/Dockerfile

@@ -22,13 +22,18 @@ RUN apt-get update -qq \
         libxtst6 \
         wget \
         pkg-config \
+        default-libmysqlclient-dev \
+        build-essential \
     # Install GeckoDriver WebDriver
     && wget -q https://github.com/mozilla/geckodriver/releases/download/${GECKODRIVER_VERSION}/geckodriver-${GECKODRIVER_VERSION}-linux64.tar.gz -O - | tar xfz - -C /usr/local/bin \
     # Install Firefox
     && wget -q https://download-installer.cdn.mozilla.net/pub/firefox/releases/${FIREFOX_VERSION}/linux-x86_64/en-US/firefox-${FIREFOX_VERSION}.tar.bz2 -O - | tar xfj - -C /opt \
     && ln -s /opt/firefox/firefox /usr/local/bin/firefox \
     && apt-get autoremove -yqq --purge wget && rm -rf /var/[log,tmp]/* /tmp/* /var/lib/apt/lists/*
 
+# Upgrade pip to avoid hash verification issues
+RUN pip install --upgrade pip
+
 # https://pypi.org/project/clickhouse-driver/
 # https://pypi.org/project/mysqlclient/
 # https://pypi.org/project/clickhouse-connect/