fix: correct ERB test expectations for trim_mode behavior

The ERB renderer uses trim_mode: "-" which has specific newline handling:
- <% code %> preserves the newline after the tag
- <% code -%> suppresses the newline after the tag

Fixed 5 failing tests by:
1. Removing incorrect blank line expectation in 'skips block when property is missing'
2. Adding -%> to opening if tags in 4 conditional tests to suppress unwanted newlines
3. Removing leading newlines from expected output where appropriate

These changes align test expectations with standard ERB behavior.

Author: rubionic

templatescompiler/erbrenderer/erb_renderer_test.go

@@ -274,7 +274,6 @@ should_not_appear: <%= host %>
 <% end -%>
 after`
 					expectedTemplateContents = `before
-
 after`
 
 					err := os.WriteFile(erbTemplateFilepath, []byte(erbTemplateContent), 0666)
@@ -466,10 +465,10 @@ debug: false`
 				})
 
 				It("uses booleans in conditionals", func() {
-					erbTemplateContent = `<% if p('features.enabled') %>
+					erbTemplateContent = `<% if p('features.enabled') -%>
 feature is enabled
 <% end -%>
-<% if !p('features.debug_mode') %>
+<% if !p('features.debug_mode') -%>
 debug is disabled
 <% end -%>`
 					expectedTemplateContents = `feature is enabled
@@ -955,14 +954,13 @@ provider_name: thales`
 				})
 
 				It("checks if any element matches condition", func() {
-					erbTemplateContent = `<% if p('providers').any? { |p| p['type'] == 'hsm' } %>
+					erbTemplateContent = `<% if p('providers').any? { |p| p['type'] == 'hsm' } -%>
 using_hsm: true
 <% end -%>
-<% if !p('empty_list').any? %>
+<% if !p('empty_list').any? -%>
 list_empty: true
 <% end -%>`
-					expectedTemplateContents = `
-using_hsm: true
+					expectedTemplateContents = `using_hsm: true
 list_empty: true
 `
 
@@ -1001,20 +999,19 @@ list_empty: true
 				})
 
 				It("checks for empty strings and arrays", func() {
-					erbTemplateContent = `<% if p('optional_cert').empty? %>
+					erbTemplateContent = `<% if p('optional_cert').empty? -%>
 no_cert: true
 <% end -%>
-<% if !p('required_key').empty? %>
+<% if !p('required_key').empty? -%>
 has_key: true
 <% end -%>
-<% if p('empty_array').empty? %>
+<% if p('empty_array').empty? -%>
 array_empty: true
 <% end -%>
-<% if !p('filled_array').empty? %>
+<% if !p('filled_array').empty? -%>
 array_filled: true
 <% end -%>`
-					expectedTemplateContents = `
-no_cert: true
+					expectedTemplateContents = `no_cert: true
 has_key: true
 array_empty: true
 array_filled: true
@@ -1053,14 +1050,13 @@ array_filled: true
 				})
 
 				It("checks array membership", func() {
-					erbTemplateContent = `<% if p('valid_modes').include?(p('selected_mode')) %>
+					erbTemplateContent = `<% if p('valid_modes').include?(p('selected_mode')) -%>
 valid_selection: true
 <% end -%>
-<% if p('tls_modes').include?('enabled') %>
+<% if p('tls_modes').include?('enabled') -%>
 supports_tls: true
 <% end -%>`
-					expectedTemplateContents = `
-valid_selection: true
+					expectedTemplateContents = `valid_selection: true
 supports_tls: true
 `