Fix the path for Java javadoc HTMLs

Do not trigger the workflow for changes in the SDKs

Signed-off-by: Martin Tzvetanov Grigorov <mgrigorov@apache.org>

.github/workflows/docs.yaml

@@ -8,7 +8,6 @@ on:
     paths:
       - .github/workflows/docs.yaml
       - doc/**
-      - lang/c/**
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -139,14 +138,12 @@ jobs:
         run: |
           set -x
           cd lang/java
-          mvn -Pdist javadoc::aggregate
-          ls -la target
-          ls -la target/apidocs
+          mvn javadoc::aggregate
 
       - uses: actions/upload-artifact@v3
         with:
           name: api-java
-          path: lang/java/target/apidocs
+          path: lang/java/target/site/apidocs
 
   push-website:
     name: Push website