chore(deps): bump flask from 0.12.5 to 2.3.2 in /tests

tests/requirements.txt

@@ -6,30 +6,30 @@
 #
 attrs==20.3.0
     # via pytest
-click==7.1.2
+blinker==1.6.2
+    # via flask
+click==8.1.3
     # via flask
 colorama==0.4.4
     # via radon
 coverage==5.3
     # via pytest-cov
-flask==0.12.5
+flask==2.3.2
     # via pytest-flask
 future==0.18.2
     # via radon
-importlib-metadata==3.1.0
-    # via
-    #   pluggy
-    #   pytest
 iniconfig==1.1.1
     # via pytest
-itsdangerous==1.1.0
+itsdangerous==2.1.2
     # via flask
-jinja2==2.11.2
+jinja2==3.1.2
     # via flask
 mando==0.6.4
     # via radon
-markupsafe==1.1.1
-    # via jinja2
+markupsafe==2.1.2
+    # via
+    #   jinja2
+    #   werkzeug
 packaging==20.4
     # via pytest
 pluggy==0.13.1
@@ -38,15 +38,15 @@ py==1.9.0
     # via pytest
 pyparsing==2.4.7
     # via packaging
-pytest-cov==2.10.1
-    # via -r requirements.in
-pytest-flask==1.1.0
-    # via -r requirements.in
 pytest==6.1.2
     # via
     #   -r requirements.in
     #   pytest-cov
     #   pytest-flask
+pytest-cov==2.10.1
+    # via -r requirements.in
+pytest-flask==1.1.0
+    # via -r requirements.in
 radon==4.3.2
     # via -r requirements.in
 six==1.15.0
@@ -55,9 +55,7 @@ six==1.15.0
     #   packaging
 toml==0.9.4
     # via pytest
-werkzeug==0.16.1
+werkzeug==2.3.3
     # via
     #   flask
     #   pytest-flask
-zipp==3.4.0
-    # via importlib-metadata