⬆️ : bump testcontainers.version from 1.14.3 to 1.15.1

Bumps `testcontainers.version` from 1.14.3 to 1.15.1.

Updates `testcontainers` from 1.14.3 to 1.15.1
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/master/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.14.3...1.15.1)

Updates `vault` from 1.14.3 to 1.15.1
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/master/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.14.3...1.15.1)

Updates `junit-jupiter` from 1.14.3 to 1.15.1
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/master/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.14.3...1.15.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

pom.xml

@@ -47,7 +47,7 @@
         <junit-jupiter.version>5.5.2</junit-jupiter.version>
         <kotlin.version>1.4.10</kotlin.version>
         <kotlinx.version>1.3.9</kotlinx.version>
-        <testcontainers.version>1.14.3</testcontainers.version>
+        <testcontainers.version>1.15.1</testcontainers.version>
         <node.version>v12.16.0</node.version>
         <npm.version>6.13.4</npm.version>
         <spring.vault.version>2.2.2.RELEASE</spring.vault.version>