update samples from Release-118 as a part of SDK release (#1673)

Co-authored-by: amlrelsa-ms <amlrelsa@microsoft.com>

how-to-use-azureml/automated-machine-learning/automl_env_linux.yml

@@ -4,7 +4,6 @@ dependencies:
   # Currently Azure ML only supports 3.5.2 and later.
 - pip==21.1.2
 - python>=3.5.2,<3.8
-- nb_conda
 - boto3==1.15.18
 - matplotlib==2.1.0
 - numpy==1.18.5
@@ -22,9 +21,9 @@ dependencies:
 
 - pip:
   # Required packages for AzureML execution, history, and data preparation.
-  - azureml-widgets~=1.37.0
+  - azureml-widgets~=1.38.0
   - pytorch-transformers==1.0.0
   - spacy==2.1.8
   - https://aka.ms/automl-resources/packages/en_core_web_sm-2.1.0.tar.gz
-  - -r https://automlsdkdataresources.blob.core.windows.net/validated-requirements/1.37.0/validated_linux_requirements.txt [--no-deps]
+  - -r https://automlsdkdataresources.blob.core.windows.net/validated-requirements/1.38.0/validated_linux_requirements.txt [--no-deps]
   - arch==4.14