fix(deps): resolving missing modules & versions (GoogleCloudPlatform#7583)

* fix: resolving missing modules & versions

* refactor: removing markupsafe for composer

Author: pattishin

appengine/flexible/websockets/requirements.txt

@@ -2,3 +2,4 @@ Flask==1.1.4 # it seems like Flask-sockets doesn't play well with 2.0+
 Flask-Sockets==0.2.1
 gunicorn==20.1.0
 requests==2.27.1
+markupsafe==2.0.1

trace/cloud-trace-demo-app-opentelemetry/app/requirements.txt

@@ -1,6 +1,7 @@
 # Don't upgrade to 2.0.0 until opentelemtry-instrumentation-flask is okay with it
 Flask==1.1.4
-markupsafe==2.0.1
+itsdangerous==1.1.0
+markupsafe==1.1.1
 opentelemetry-exporter-gcp-trace==1.1.0
 opentelemetry-propagator-gcp==1.1.0
 opentelemetry-instrumentation-flask==0.20b0

trace/cloud-trace-demo-app/app/requirements.txt

@@ -3,7 +3,8 @@ google-cloud-trace==0.24.0
 opencensus==0.8.0
 # Don't upgrade to 2.0.0 yet until opencensus-ext-flask is okay with it
 Flask==1.1.4
-markupsafe==2.0.1
+itsdangerous==1.1.0
+markupsafe==1.1.1
 opencensus-ext-stackdriver==0.8.0
 opencensus-ext-flask==0.7.6 # requires flask!=1.1.3, <2.0.0 and >=0.12.3
 opencensus-context==0.1.2