Remove $ in pom files

java/core/pom_template.xml

@@ -31,7 +31,7 @@
             <Automatic-Module-Name>com.google.protobuf</Automatic-Module-Name> <!-- Java9+ Jigsaw module name -->
             <Bundle-DocURL>https://developers.google.com/protocol-buffers/</Bundle-DocURL>
             <Bundle-SymbolicName>com.google.protobuf</Bundle-SymbolicName>
-            <Export-Package>com.google.protobuf;version=${project.version}</Export-Package>
+            <Export-Package>com.google.protobuf;version={project.version}</Export-Package>
             <Import-Package>sun.misc;resolution:=optional,*</Import-Package>
           </instructions>
         </configuration>

java/kotlin-lite/pom_template.xml

@@ -17,7 +17,7 @@
   </description>
   <dependencies>
     <dependency>
-      <groupId>${groupId}</groupId>
+      <groupId>{groupId}</groupId>
       <artifactId>protobuf-javalite</artifactId>
     </dependency>
     {dependencies}

java/kotlin/pom_template.xml

@@ -17,7 +17,7 @@
   </description>
   <dependencies>
     <dependency>
-      <groupId>${groupId}</groupId>
+      <groupId>{groupId}</groupId>
       <artifactId>protobuf-java</artifactId>
     </dependency>
     {dependencies}

java/lite/pom_template.xml

@@ -31,7 +31,7 @@
             <Automatic-Module-Name>com.google.protobuf</Automatic-Module-Name> <!-- Java9+ Jigsaw module name -->
             <Bundle-DocURL>https://developers.google.com/protocol-buffers/</Bundle-DocURL>
             <Bundle-SymbolicName>com.google.protobuf</Bundle-SymbolicName>
-            <Export-Package>com.google.protobuf;version=${project.version}</Export-Package>
+            <Export-Package>com.google.protobuf;version={project.version}</Export-Package>
             <Import-Package>sun.misc;resolution:=optional,*</Import-Package>
           </instructions>
         </configuration>

java/util/pom_template.xml

@@ -14,7 +14,7 @@
   <description>Utilities for Protocol Buffers</description>
   <dependencies>
     <dependency>
-      <groupId>${groupId}</groupId>
+      <groupId>{groupId}</groupId>
       <artifactId>protobuf-java</artifactId>
     </dependency>
     {dependencies}
@@ -32,7 +32,7 @@
             <Automatic-Module-Name>com.google.protobuf.util</Automatic-Module-Name> <!-- Java9+ Jigsaw module name -->
             <Bundle-DocURL>https://developers.google.com/protocol-buffers/</Bundle-DocURL>
             <Bundle-SymbolicName>com.google.protobuf.util</Bundle-SymbolicName>
-            <Export-Package>com.google.protobuf.util;version=${project.version}</Export-Package>
+            <Export-Package>com.google.protobuf.util;version={project.version}</Export-Package>
           </instructions>
         </configuration>
       </plugin>