docs: fix EnabledCondition example (interface, not class) (#3810)

Relates to #3259 but applied to all doc versions

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Signed-off-by: Jonathan Hult <Jonathan@JonathanHult.com>

documentation/docs/framework/conditional/annotations.md

@@ -40,7 +40,7 @@ to determine if a spec is enabled. Note that implementations must have a zero ar
 For example, we may wish to only execute tests containing the name "Linux" when run on a Linux machine.
 
 ```kotlin
-class LinuxOnlyCondition : EnabledCondition() {
+class LinuxOnlyCondition : EnabledCondition {
   override fun enabled(kclass: KClass<out Spec>): Boolean = when {
     kclass.simpleName?.contains("Linux") == true -> IS_OS_LINUX
     else -> true // non Linux tests always run

documentation/versioned_docs/version-5.2/framework/conditional/annotations.md

@@ -40,7 +40,7 @@ to determine if a spec is enabled. Note that implementations must have a zero ar
 For example, we may wish to only execute tests containing the name "Linux" when run on a Linux machine.
 
 ```kotlin
-class LinuxOnlyCondition : EnabledCondition() {
+class LinuxOnlyCondition : EnabledCondition {
   override fun enabled(kclass: KClass<out Spec>): Boolean = when {
     kclass.simpleName?.contains("Linux") == true -> IS_OS_LINUX
     else -> true // non Linux tests always run

documentation/versioned_docs/version-5.3/framework/conditional/annotations.md

@@ -40,7 +40,7 @@ to determine if a spec is enabled. Note that implementations must have a zero ar
 For example, we may wish to only execute tests containing the name "Linux" when run on a Linux machine.
 
 ```kotlin
-class LinuxOnlyCondition : EnabledCondition() {
+class LinuxOnlyCondition : EnabledCondition {
   override fun enabled(kclass: KClass<out Spec>): Boolean = when {
     kclass.simpleName?.contains("Linux") == true -> IS_OS_LINUX
     else -> true // non Linux tests always run

documentation/versioned_docs/version-5.4/framework/conditional/annotations.md

@@ -40,7 +40,7 @@ to determine if a spec is enabled. Note that implementations must have a zero ar
 For example, we may wish to only execute tests containing the name "Linux" when run on a Linux machine.
 
 ```kotlin
-class LinuxOnlyCondition : EnabledCondition() {
+class LinuxOnlyCondition : EnabledCondition {
   override fun enabled(kclass: KClass<out Spec>): Boolean = when {
     kclass.simpleName?.contains("Linux") == true -> IS_OS_LINUX
     else -> true // non Linux tests always run

documentation/versioned_docs/version-5.6/framework/conditional/annotations.md

@@ -40,7 +40,7 @@ to determine if a spec is enabled. Note that implementations must have a zero ar
 For example, we may wish to only execute tests containing the name "Linux" when run on a Linux machine.
 
 ```kotlin
-class LinuxOnlyCondition : EnabledCondition() {
+class LinuxOnlyCondition : EnabledCondition {
   override fun enabled(kclass: KClass<out Spec>): Boolean = when {
     kclass.simpleName?.contains("Linux") == true -> IS_OS_LINUX
     else -> true // non Linux tests always run

documentation/versioned_docs/version-5.7/framework/conditional/annotations.md

@@ -40,7 +40,7 @@ to determine if a spec is enabled. Note that implementations must have a zero ar
 For example, we may wish to only execute tests containing the name "Linux" when run on a Linux machine.
 
 ```kotlin
-class LinuxOnlyCondition : EnabledCondition() {
+class LinuxOnlyCondition : EnabledCondition {
   override fun enabled(kclass: KClass<out Spec>): Boolean = when {
     kclass.simpleName?.contains("Linux") == true -> IS_OS_LINUX
     else -> true // non Linux tests always run

documentation/versioned_docs/version-5.8/framework/conditional/annotations.md

@@ -40,7 +40,7 @@ to determine if a spec is enabled. Note that implementations must have a zero ar
 For example, we may wish to only execute tests containing the name "Linux" when run on a Linux machine.
 
 ```kotlin
-class LinuxOnlyCondition : EnabledCondition() {
+class LinuxOnlyCondition : EnabledCondition {
   override fun enabled(kclass: KClass<out Spec>): Boolean = when {
     kclass.simpleName?.contains("Linux") == true -> IS_OS_LINUX
     else -> true // non Linux tests always run