Update copyright year

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1916670 13f79535-47bb-0310-9956-ffa450edef68

Author: rainerjung

docs/manual/style/xsl/common.xsl

@@ -418,7 +418,7 @@ var comments_identifier = 'http://httpd.apache.org/docs/]]></xsl:text>&httpd.doc
 </xsl:choose>
 <div id="footer">&lf;
     <p class="apache">
-        <xsl:text>Copyright 2023 The Apache Software Foundation.</xsl:text><br />
+        <xsl:text>Copyright 2024 The Apache Software Foundation.</xsl:text><br />
         <xsl:if test="normalize-space($message[@id='before-license'])">
             <xsl:value-of select="$message[@id='before-license']"/>
             <xsl:text> </xsl:text>

include/ap_release.h

@@ -23,7 +23,7 @@
 #define AP_RELEASE_H
 
 #define AP_SERVER_COPYRIGHT \
-  "Copyright 2021 The Apache Software Foundation."
+  "Copyright 2024 The Apache Software Foundation."
 
 /*
  * The below defines the base string of the Server: header. Additional