Fix rubocop style issues (trailing whitespace)

Co-authored-by: fletchto99 <[email protected]>

Author: Copilot

lib/secure_headers.rb

@@ -147,7 +147,7 @@ def header_hash_for(request)
 
       if request.scheme != HTTPS
         headers.delete(StrictTransportSecurity::HEADER_NAME)
-        
+
         # Remove upgrade_insecure_requests from CSP headers for HTTP requests
         # as it doesn't make sense to upgrade requests when the page itself is served over HTTP
         if !config.csp.opt_out? && config.csp.directive_value(ContentSecurityPolicy::UPGRADE_INSECURE_REQUESTS)
@@ -156,7 +156,7 @@ def header_hash_for(request)
           header_name, value = ContentSecurityPolicy.make_header(modified_csp_config)
           headers[header_name] = value if header_name && value
         end
-        
+
         if !config.csp_report_only.opt_out? && config.csp_report_only.directive_value(ContentSecurityPolicy::UPGRADE_INSECURE_REQUESTS)
           modified_csp_report_only_config = config.csp_report_only.dup
           modified_csp_report_only_config.update_directive(ContentSecurityPolicy::UPGRADE_INSECURE_REQUESTS, false)

spec/lib/secure_headers_spec.rb

@@ -446,7 +446,7 @@ module SecureHeaders
               upgrade_insecure_requests: true
             }
           end
-          
+
           plaintext_request = Rack::Request.new({})
           hash = SecureHeaders.header_hash_for(plaintext_request)
           expect(hash[ContentSecurityPolicyConfig::HEADER_NAME]).to eq("default-src 'self'; script-src 'self'")
@@ -462,7 +462,7 @@ module SecureHeaders
               upgrade_insecure_requests: true
             }
           end
-          
+
           https_request = Rack::Request.new("HTTPS" => "on")
           hash = SecureHeaders.header_hash_for(https_request)
           expect(hash[ContentSecurityPolicyConfig::HEADER_NAME]).to eq("default-src 'self'; script-src 'self'; upgrade-insecure-requests")
@@ -477,7 +477,7 @@ module SecureHeaders
               upgrade_insecure_requests: true
             }
           end
-          
+
           plaintext_request = Rack::Request.new({})
           hash = SecureHeaders.header_hash_for(plaintext_request)
           expect(hash[ContentSecurityPolicyReportOnlyConfig::HEADER_NAME]).to eq("default-src 'self'; script-src 'self'")
@@ -493,7 +493,7 @@ module SecureHeaders
               upgrade_insecure_requests: true
             }
           end
-          
+
           https_request = Rack::Request.new("HTTPS" => "on")
           hash = SecureHeaders.header_hash_for(https_request)
           expect(hash[ContentSecurityPolicyReportOnlyConfig::HEADER_NAME]).to eq("default-src 'self'; script-src 'self'; upgrade-insecure-requests")