Bump bootstrap from 4.5.0 to 4.5.2

Bumps [bootstrap](https://github.com/webjars/bootstrap) from 4.5.0 to 4.5.2.
- [Release notes](https://github.com/webjars/bootstrap/releases)
- [Commits](webjars/bootstrap@bootstrap-4.5.0...bootstrap-4.5.2)

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

Author: dependabot-preview[bot]

build.gradle

@@ -193,7 +193,7 @@ configure(allJavaProjects) {
     def thymeleafVersion = '3.0.4.RELEASE'
     def modelMapperVersion = '2.3.8'
 
-    def bootstrapVersion = '4.5.0'
+    def bootstrapVersion = '4.5.2'
     def jqueryVersion = '3.5.1'
     def fontAwesomeVersion = '5.14.0'
     def webjarsLocatorVersion = '0.40'

samples/mpa/build.gradle

@@ -41,7 +41,7 @@ dependencies {
     implementation('ch.qos.logback:logback-classic')
     implementation('javax.xml.bind:jaxb-api')
     implementation('org.thymeleaf:thymeleaf-spring5')
-    implementation('org.webjars:bootstrap:4.5.0')
+    implementation('org.webjars:bootstrap:4.5.2')
     implementation('org.webjars:jquery:3.5.1')
     implementation('org.webjars:font-awesome:5.14.0')
     implementation('org.webjars:webjars-locator:0.40')