fix: set duplicatesStrategy=INCLUDE for shadow JAR spring.factories merge

Shadow plugin 9.x defaults to DuplicatesStrategy.EXCLUDE, which drops
duplicate META-INF/spring.factories entries before transformers can
merge them. Setting INCLUDE allows the AppendingTransformer to see all
entries and properly concatenate spring.factories from all JARs.

Without this, the shadow JAR only contains spring.factories from a
single dependency, causing Spring Boot auto-configuration to fail
(e.g. missing RestTemplateBuilder, no embedded web server).

Author: adinauer

sentry-samples/sentry-samples-netflix-dgs/build.gradle.kts

@@ -1,3 +1,4 @@
+
 import org.jetbrains.kotlin.config.KotlinCompilerVersion
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
@@ -40,6 +41,7 @@ dependencies {
 tasks.shadowJar {
   manifest { attributes["Main-Class"] = "io.sentry.samples.netflix.dgs.NetlixDgsApplication" }
   archiveClassifier.set("")
+  duplicatesStrategy = DuplicatesStrategy.INCLUDE
   mergeServiceFiles()
   append("META-INF/spring.handlers")
   append("META-INF/spring.schemas")

sentry-samples/sentry-samples-spring-boot-opentelemetry-noagent/build.gradle.kts

@@ -1,3 +1,4 @@
+
 import org.jetbrains.kotlin.config.KotlinCompilerVersion
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
@@ -81,6 +82,7 @@ dependencies {
 tasks.shadowJar {
   manifest { attributes["Main-Class"] = "io.sentry.samples.spring.boot.SentryDemoApplication" }
   archiveClassifier.set("")
+  duplicatesStrategy = DuplicatesStrategy.INCLUDE
   mergeServiceFiles()
   append("META-INF/spring.handlers")
   append("META-INF/spring.schemas")

sentry-samples/sentry-samples-spring-boot-opentelemetry/build.gradle.kts

@@ -1,3 +1,4 @@
+
 import org.jetbrains.kotlin.config.KotlinCompilerVersion
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
@@ -77,6 +78,7 @@ dependencies {
 tasks.shadowJar {
   manifest { attributes["Main-Class"] = "io.sentry.samples.spring.boot.SentryDemoApplication" }
   archiveClassifier.set("")
+  duplicatesStrategy = DuplicatesStrategy.INCLUDE
   mergeServiceFiles()
   append("META-INF/spring.handlers")
   append("META-INF/spring.schemas")

sentry-samples/sentry-samples-spring-boot-webflux/build.gradle.kts

@@ -1,3 +1,4 @@
+
 import org.jetbrains.kotlin.config.KotlinCompilerVersion
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
@@ -50,6 +51,7 @@ dependencies {
 tasks.shadowJar {
   manifest { attributes["Main-Class"] = "io.sentry.samples.spring.boot.SentryDemoApplication" }
   archiveClassifier.set("")
+  duplicatesStrategy = DuplicatesStrategy.INCLUDE
   mergeServiceFiles()
   append("META-INF/spring.handlers")
   append("META-INF/spring.schemas")

sentry-samples/sentry-samples-spring-boot/build.gradle.kts

@@ -77,6 +77,7 @@ dependencies {
 tasks.shadowJar {
   manifest { attributes["Main-Class"] = "io.sentry.samples.spring.boot.SentryDemoApplication" }
   archiveClassifier.set("")
+  duplicatesStrategy = DuplicatesStrategy.INCLUDE
   mergeServiceFiles()
   append("META-INF/spring.handlers")
   append("META-INF/spring.schemas")