chore: deprecate java1.8 al1 (#1706)

* java 1.8 AL1 is deprecated
* remove java8 from sam examples

Author: jeromevdl

docs/core/logging.md

@@ -187,7 +187,7 @@ You can also override log level by setting **`POWERTOOLS_LOG_LEVEL`** env var. H
             Type: AWS::Serverless::Function
             Properties:
             ...
-            Runtime: java8
+            Runtime: java11
             Environment:
                 Variables:
                     POWERTOOLS_LOG_LEVEL: DEBUG
@@ -590,7 +590,7 @@ via `samplingRate` attribute on annotation.
             Type: AWS::Serverless::Function
             Properties:
             ...
-            Runtime: java8
+            Runtime: java11
             Environment:
                 Variables:
                     POWERTOOLS_LOGGER_SAMPLE_RATE: 0.5

docs/core/metrics.md

@@ -179,7 +179,7 @@ Setting | Description | Environment variable | Constructor parameter
             Type: AWS::Serverless::Function
             Properties:
             ...
-            Runtime: java8
+            Runtime: java11
             Environment:
                 Variables:
                     POWERTOOLS_SERVICE_NAME: payment

docs/core/tracing.md

@@ -164,7 +164,7 @@ Before your use this utility, your AWS Lambda function [must have permissions](h
             Type: AWS::Serverless::Function
             Properties:
             ...
-            Runtime: java8
+            Runtime: java11
 
             Tracing: Active
             Environment:
@@ -250,7 +250,7 @@ different supported `captureMode` to record response, exception or both.
             Type: AWS::Serverless::Function
             Properties:
             ...
-            Runtime: java8
+            Runtime: java11
 
             Tracing: Active
             Environment:

examples/powertools-examples-core/gradle/template.yaml

@@ -26,7 +26,7 @@ Resources:
     Properties:
       CodeUri: .
       Handler: helloworld.App::handleRequest
-      Runtime: java8
+      Runtime: java8.al2
       MemorySize: 512
       Environment: # More info about Env Vars: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#environment-object
         Variables:
@@ -43,7 +43,7 @@ Resources:
     Properties:
       CodeUri: .
       Handler: helloworld.AppStream::handleRequest
-      Runtime: java8
+      Runtime: java8.al2
       MemorySize: 512
       Tracing: Active
       Environment: