Minor AI-suggested improvements to Maven config

Motivation
----------

Improve consistency and utility of build/test

Modification
------------

- Remove hardwired "SNAPSHOT" reference from `modules/gplazma/pom.xml`.
- Removed `<showDeprecation>true</showDeprecation>` from Maven compiler configuration in `modules/srm-client/pom.xml`

Result
------

More consistent, less error-prone build/test.

Ticket: -
Acked-by: Karen Hoyos
Target: trunk
Request: -
Require-book: no
Require-notes: no

Author: greenc-FNAL

modules/gplazma2-fermi/pom.xml

@@ -18,7 +18,7 @@
         <dependency>
             <groupId>org.dcache</groupId>
             <artifactId>gplazma2</artifactId>
-            <version>11.2.0-SNAPSHOT</version>
+            <version>${project.version}</version>
         </dependency>
       <dependency>
         <groupId>com.google.code.gson</groupId>

modules/srm-client/pom.xml

@@ -67,7 +67,6 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <showDeprecation>true</showDeprecation>
                     <compilerArgument>-Xlint:all</compilerArgument>
                 </configuration>
             </plugin>