Fix for the URI.escape monkey patch.

The monkey patch was not being loaded from lib/cloud/azure.rb on normal
execution, so it had to be added to lib/bosh_azure_cpi.rb . This however
loads the monkey patch even when running the unit tests so a new condition
was required on these tests.

[#181531703] [azure cpi] Fix the Docker image that builds the azure CPI

src/bosh_azure_cpi/lib/cloud/azure.rb

@@ -103,6 +103,9 @@ module AzureCloud; end
 require 'cloud/azure/telemetry/telemetry_event_handler'
 require 'cloud/azure/telemetry/wire_client'
 
+require 'monkey_patches/uri_monkey_patch'
+Bosh::AzureCloud::URIMonkeyPatch.apply_patch
+
 module Bosh
   module Clouds
     Azure = Bosh::AzureCloud::Cloud

src/bosh_azure_cpi/spec/unit/monkey_patches/uri_monkey_patch_spec.rb

@@ -5,6 +5,8 @@
 describe Bosh::AzureCloud::URIMonkeyPatch do
   describe '.apply_patch' do
     context 'when URI does not have an escape method' do
+      before { URI.instance_eval { undef :escape } }
+
       it 'should add the escape function' do
         expect { URI.method(:escape) }.to raise_error(NameError)
         expect { Bosh::AzureCloud::URIMonkeyPatch.apply_patch }.not_to raise_error