Maven release Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password) - maven

Question

I'm trying to perform a mvn release:prepare command from a git bash console (on Windows 10) and I get the following error:
[ERROR] Permission denied, please try again.
[ERROR] git#gitlab.XXX.fr: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
[ERROR] fatal: Could not read from remote repository.
[ERROR]
[ERROR] Please make sure you have the correct access rights
[ERROR] and the repository exists.
Here's the build part of my pom.xml:
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-toolchains-plugin</artifactId>
<version>1.1</version>
<executions>
<execution>
<goals>
<goal>toolchain</goal>
</goals>
</execution>
</executions>
<configuration>
<toolchains>
<jdk>
<version>${maven.compiler.source}</version>
</jdk>
</toolchains>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<dependentWarExcludes>WEB-INF/lib/*</dependentWarExcludes>
<webResources>
<resource>
<directory>src/main/webapp</directory>
<!-- enable filtering -->
<filtering>true</filtering>
<includes>
<include>META-INF/context.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/webapp</directory>
<!-- enable filtering -->
<filtering>false</filtering>
<excludes>
<exclude>META-INF/context.xml</exclude>
</excludes>
</resource>
</webResources>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-release-plugin</artifactId>
<version>2.4.1</version>
<configuration>
<tagNameFormat>v#{project.version}</tagNameFormat>
<arguments>-Dmaven.javadoc.skip=true</arguments>
</configuration>
<dependencies>
<dependency>
<groupId>org.apache.maven.shared</groupId>
<artifactId>maven-invoker</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-scm-plugin</artifactId>
<version>1.8.1</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>2.6</version>
</plugin>
</plugins>
</build>
<scm>
<developerConnection>scm:git:ssh://git#gitlab.XXX.fr/YYY.git</developerConnection>
<url>https://gitlab.XXX.fr/YYY</url>
<tag>v5.1.31</tag>
</scm>
The "funny" part is that when I perform a git push from the same console, it works. So the console knows my ssh key but Maven doesn't.
Edit: I forgot to mention that it used to work perfectly until I updated git to 2.39.
Thank you very much