ci: Update permissions

Author: SMadani

.github/workflows/build.yml

@@ -10,7 +10,7 @@ permissions:
   checks: write
   contents: read
   deployments: none
-  issues: write
+  issues: read
   discussions: none
   packages: none
   pages: read

.github/workflows/publish.yml

@@ -9,11 +9,11 @@ permissions:
   contents: read
   deployments: read
   issues: write
-  discussions: write
+  discussions: none
   packages: write
   pages: write
   pull-requests: read
-  security-events: write
+  security-events: read
   statuses: write
 
 jobs:

pom.xml

@@ -40,7 +40,6 @@
   </issueManagement>
 
   <properties>
-    <nexusUrl>https://oss.sonatype.org</nexusUrl>
     <project.scm.connection>scm:git@github.com:Vonage/vonage-kotlin-sdk</project.scm.connection>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
@@ -270,7 +269,7 @@
             <extensions>true</extensions>
             <configuration>
               <serverId>nexus-releases</serverId>
-              <nexusUrl>${nexusUrl}</nexusUrl>
+              <nexusUrl>https://oss.sonatype.org</nexusUrl>
               <autoReleaseAfterClose>true</autoReleaseAfterClose>
             </configuration>
           </plugin>