Fix wrong query in maven_packages_spec.rb

The query was passing a string for file_type when it is an int.
This is actually an unused column but was working in Rails 5
because it was just coerced to 0 which is the default value.

In Rails 6, it is now nil so no records match our query

ee/spec/factories/packages.rb

@@ -85,7 +85,6 @@ FactoryBot.define do
         file_name { 'conanfile.py' }
         file_sha1 { 'be93151dc23ac34a82752444556fe79b32c7a1ad' }
         file_md5 { '12345abcde' }
-        file_type { 'py' }
         size { 400.kilobytes }
       end
 
@@ -98,7 +97,6 @@ FactoryBot.define do
         file_name { 'conanmanifest.txt' }
         file_sha1 { 'be93151dc23ac34a82752444556fe79b32c7a1ad' }
         file_md5 { '12345abcde' }
-        file_type { 'txt' }
         size { 400.kilobytes }
       end
 
@@ -111,7 +109,6 @@ FactoryBot.define do
         file_name { 'conanmanifest.txt' }
         file_sha1 { 'be93151dc23ac34a82752444556fe79b32c7a1ad' }
         file_md5 { '12345abcde' }
-        file_type { 'txt' }
         size { 400.kilobytes }
       end
 
@@ -124,7 +121,6 @@ FactoryBot.define do
         file_name { 'conaninfo.txt' }
         file_sha1 { 'be93151dc23ac34a82752444556fe79b32c7a1ad' }
         file_md5 { '12345abcde' }
-        file_type { 'txt' }
         size { 400.kilobytes }
       end
 
@@ -137,7 +133,6 @@ FactoryBot.define do
         file_name { 'conan_package.tgz' }
         file_sha1 { 'be93151dc23ac34a82752444556fe79b32c7a1ad' }
         file_md5 { '12345abcde' }
-        file_type { 'tgz' }
         size { 400.kilobytes }
       end
     end
@@ -146,7 +141,6 @@ FactoryBot.define do
       file { fixture_file_upload('ee/spec/fixtures/maven/my-app-1.0-20180724.124855-1.jar') }
       file_name { 'my-app-1.0-20180724.124855-1.jar' }
       file_sha1 { '4f0bfa298744d505383fbb57c554d4f5c12d88b3' }
-      file_type { 'jar' }
       size { 100.kilobytes }
     end
 
@@ -154,7 +148,6 @@ FactoryBot.define do
       file { fixture_file_upload('ee/spec/fixtures/maven/my-app-1.0-20180724.124855-1.pom') }
       file_name { 'my-app-1.0-20180724.124855-1.pom' }
       file_sha1 { '19c975abd49e5102ca6c74a619f21e0cf0351c57' }
-      file_type { 'pom' }
       size { 200.kilobytes }
     end
 
@@ -162,7 +155,6 @@ FactoryBot.define do
       file { fixture_file_upload('ee/spec/fixtures/maven/maven-metadata.xml') }
       file_name { 'maven-metadata.xml' }
       file_sha1 { '42b1bdc80de64953b6876f5a8c644f20204011b0' }
-      file_type { 'xml' }
       size { 300.kilobytes }
     end
 
@@ -170,7 +162,6 @@ FactoryBot.define do
       file { fixture_file_upload('ee/spec/fixtures/npm/foo-1.0.1.tgz') }
       file_name { 'foo-1.0.1.tgz' }
       file_sha1 { 'be93151dc23ac34a82752444556fe79b32c7a1ad' }
-      file_type { 'tgz' }
       size { 400.kilobytes }
     end