fix also in tests file_name typo ( see official documentation at http…

…s://documentation.suse.com/sles/15-SP6/html/SLES-all/cha-configuration-installation-options.html#id-1.7.5.2.37.11.6 )

service/test/agama/autoyast/scripts_reader_test.rb

@@ -32,7 +32,7 @@
 
   context "when the script definition includes the sources" do
     let(:script) do
-      { "file_name" => "script.sh",
+      { "filename" => "script.sh",
         "location"  => "https://example.com/script.sh" }
     end
 
@@ -45,7 +45,7 @@
   context "when the script definition specifies a location" do
     let(:script) do
       {
-        "file_name" => "script.sh",
+        "filename" => "script.sh",
         "source"    => "#!/bin/bash\necho 'Hello World!'"
       }
     end
@@ -77,7 +77,7 @@
       it_behaves_like "a script reader", "chroot-scripts", "post"
 
       let(:chroot_script) do
-        { "file_name" => "test.sh",
+        { "filename" => "test.sh",
           "chrooted"  => true,
           "source"    => "#!/bin/bash\necho 'Hello World!'" }
       end
@@ -92,7 +92,7 @@
 
       context "when the \"chrooted\" option is not set" do
         let(:chroot_script) do
-          { "file_name" => "test.sh",
+          { "filename" => "test.sh",
             "source"    => "#!/bin/bash\necho 'Hello World!'" }
         end