chore: Refactor python libs (#22335)

requirements/base.txt

@@ -273,6 +273,7 @@ werkzeug==2.0.3
     #   flask-jwt-extended
 wtforms==2.3.3
     # via
+    #   apache-superset
     #   flask-appbuilder
     #   flask-wtf
     #   wtforms-json

requirements/testing.txt

@@ -18,10 +18,8 @@ cachetools==5.2.0
     # via google-auth
 coverage==5.5
     # via pytest-cov
-db-dtypes @ git+https://git@github.com/googleapis/python-db-dtypes-pandas.git@388e082a47d9515a14e20ffd87705c71712087ab
-    # via
-    #   apache-superset
-    #   pandas-gbq
+db-dtypes==1.0.5
+    # via pandas-gbq
 docker==5.0.0
     # via -r requirements/testing.in
 flask-testing==0.8.1

setup.py

@@ -120,13 +120,13 @@ setup(
         "sqlparse>=0.4.3, <0.5",
         "tabulate>=0.8.9, <0.9",
         "typing-extensions>=4, <5",
+        "wtforms>=2.3.3, <2.4",
         "wtforms-json",
     ],
     extras_require={
         "athena": ["pyathena[pandas]>=2, <3"],
         "aurora-data-api": ["preset-sqlalchemy-aurora-data-api>=0.2.8,<0.3"],
         "bigquery": [
-            "db-dtypes @ git+https://git@github.com/googleapis/python-db-dtypes-pandas.git@388e082a47d9515a14e20ffd87705c71712087ab#egg=db-dtypes",
             "pandas-gbq>=0.18.1",
             "sqlalchemy-bigquery>=1.5.0",
             "google-cloud-bigquery>=3.4.0",