Dependency version updates (postgis#97)

* - Updated postgresql-jdbc to v42.2.20

* - Updated spatial4j from v0.7 to v0.8

(cherry picked from commit f280b54)

pom.xml

@@ -144,9 +144,9 @@
         <dependency.checkstyle.version>8.42</dependency.checkstyle.version>
         <dependency.jts-version.version>1.18.1</dependency.jts-version.version>
         <dependency.logback.version>1.2.3</dependency.logback.version>
-        <dependency.postgresql-jdbc.version>42.2.16</dependency.postgresql-jdbc.version>
+        <dependency.postgresql-jdbc.version>42.2.20</dependency.postgresql-jdbc.version>
         <dependency.slfj.version>1.7.30</dependency.slfj.version>
-        <dependency.spatial4j.version>0.7</dependency.spatial4j.version>
+        <dependency.spatial4j.version>0.8</dependency.spatial4j.version>
         <dependency.testcontainers.version>1.15.3</dependency.testcontainers.version>
         <dependency.testng.version>6.14.3</dependency.testng.version>
     </properties>
@@ -590,7 +590,7 @@
                 </repository>
             </distributionManagement>
         </profile>
-
+        
         <profile>
             <id>SkipUnitTests</id>
             <properties>