[CI] Updates to oldest (tests require Orange 3.35)

tox.ini

@@ -21,14 +21,14 @@ setenv =
 deps =
     {env:PYQT_PYPI_NAME:PyQt5}=={env:PYQT_PYPI_VERSION:5.15.*}
     {env:WEBENGINE_PYPI_NAME:PyQtWebEngine}=={env:WEBENGINE_PYPI_VERSION:5.15.*}
-    oldest: orange3==3.34.0
+    oldest: orange3==3.35.0
     # Use newer canvas-core and widget-base to avoid segfaults on windows
-    oldest: orange-canvas-core==0.1.28
-    oldest: orange-widget-base==4.19.0
+    oldest: orange-canvas-core==0.1.30
+    oldest: orange-widget-base==4.20.0
     oldest: orange-spectroscopy==0.7.2
-    oldest: pandas==1.3
+    oldest: pandas==1.4
     oldest: numpy==1.21.0
-    oldest: scikit-learn==1.0.1
+    oldest: scikit-learn==1.1.0
     latest: git+https://github.com/quasars/orange-spectroscopy.git#egg=orange-spectroscopy
     latest: git+https://github.com/biolab/orange3.git#egg=orange3
     latest: git+https://github.com/biolab/orange-canvas-core.git#egg=orange-canvas-core