Updating repository URLs to HTTPS

For details on why this change is happening see this Talk post: https://talk.openmrs.org/t/maven-3-8-1-and-http-repositories/33364

If this commit causes issues, please feel free to revert

pom.xml

@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
@@ -272,20 +273,20 @@
         <repository>
             <id>openmrs-repo</id>
             <name>OpenMRS Nexus Repository</name>
-            <url>http://mavenrepo.openmrs.org/nexus/content/repositories/public</url>
+            <url>https://mavenrepo.openmrs.org/public</url>
         </repository>
         <repository>
             <id>openmrs-repo-modules</id>
             <name>OpenMRS Modules Nexus Repository</name>
-            <url>http://mavenrepo.openmrs.org/nexus/content/repositories/modules</url>
+            <url>https://mavenrepo.openmrs.org/modules</url>
         </repository>
     </repositories>
 
     <pluginRepositories>
         <pluginRepository>
             <id>openmrs-repo</id>
             <name>OpenMRS Nexus Repository</name>
-            <url>http://mavenrepo.openmrs.org/nexus/content/repositories/public</url>
+            <url>https://mavenrepo.openmrs.org/public</url>
             <snapshots>
                 <enabled>false</enabled>
             </snapshots>
@@ -296,12 +297,12 @@
         <repository>
             <id>openmrs-repo-modules</id>
             <name>Modules</name>
-            <url>http://mavenrepo.openmrs.org/nexus/content/repositories/modules/</url>
+            <url>https://mavenrepo.openmrs.org/modules</url>
         </repository>
         <snapshotRepository>
             <id>openmrs-repo-snapshots</id>
             <name>OpenMRS Snapshots</name>
-            <url>http://mavenrepo.openmrs.org/nexus/content/repositories/snapshots</url>
+            <url>https://mavenrepo.openmrs.org/snapshots</url>
         </snapshotRepository>
     </distributionManagement>