Bump to V1.15.0

Signed-off-by: Didier Vidal <didier.vidal_externe@rte-france.com>

Author: vidaldid-rte

README.md

@@ -100,12 +100,12 @@ dependencies to respectively have access to network model, IEEE test networks an
 <dependency>
     <groupId>com.powsybl</groupId>
     <artifactId>powsybl-iidm-impl</artifactId>
-    <version>6.6.0</version>
+    <version>6.7.0</version>
 </dependency>
 <dependency>
     <groupId>com.powsybl</groupId>
     <artifactId>powsybl-ieee-cdf-converter</artifactId>
-    <version>6.6.0</version>
+    <version>6.7.0</version>
 </dependency>
 <dependency>
     <groupId>org.slf4j</groupId>
@@ -124,7 +124,7 @@ After adding a last Maven dependency on Open Load Flow implementation:
 <dependency>
     <groupId>com.powsybl</groupId>
     <artifactId>powsybl-open-loadflow</artifactId>
-    <version>1.14.1</version>
+    <version>1.15.0</version>
 </dependency>
 ```
 

pom.xml

@@ -19,7 +19,7 @@
     </parent>
 
     <artifactId>powsybl-open-loadflow</artifactId>
-    <version>1.15.0-SNAPSHOT</version>
+    <version>1.15.0</version>
 
     <name>powsybl open loadflow</name>
     <description>An open source loadflow based on PowSyBl</description>