CI: Publish Rust docs if they were generated

Include the generated Rust documentation in the published docs, both for PR
and for main, if they were generated.

Signed-off-by: David Brown <david.brown@linaro.org>

.github/workflows/doc-publish-pr.yml

@@ -60,6 +60,9 @@ jobs:
         if [ -f api-coverage/api-coverage.tar.xz ]; then
           tar xf api-coverage/api-coverage.tar.xz -C api-coverage
         fi
+        if [ -f rustdocs/rustdocs-output.tar.xz ]; then
+          tar xf rustdocs/rustdocs-output.tar.xz -C rustdocs
+        fi
 
     - name: Configure AWS Credentials
       if: steps.download-artifacts.outputs.found_artifact == 'true'
@@ -82,3 +85,8 @@ jobs:
             s3://builds.zephyrproject.org/${{ github.event.repository.name }}/pr/${PR_NUM}/api-coverage \
             --delete
         fi
+        if [ -d rustdocs/rustdocs ]; then
+          aws s3 sync --quiet rustdocs/rustdocs/ \
+            s3://builds.zephyrproject.org/${{ github.event.repository.name }}/pr/${PR_NUM}/rustdocs \
+            --delete
+        fi

.github/workflows/doc-publish.yml

@@ -35,6 +35,9 @@ jobs:
         if [ -f api-coverage/api-coverage.tar.xz ]; then
           tar xf api-coverage/api-coverage.tar.xz -C api-coverage
         fi
+        if [ -f rustdocs/rustdocs-output.tar.xz ]; then
+          tar xf rustdocs/rustdocs-output.tar.xz -C rustdocs
+        fi
 
     - name: Configure AWS Credentials
       uses: aws-actions/configure-aws-credentials@v4
@@ -58,4 +61,7 @@ jobs:
         if [ -d api-coverage/coverage-report ]; then
           aws s3 sync --quiet api-coverage/coverage-report/ s3://docs.zephyrproject.org/api-coverage/${VERSION} --delete
         fi
+        if [ -d rustdocs/rustdocs ]; then
+          aws s3 sync --quiet rustdocs/rustdocs/ s3://docs.zephyrproject.org/rustdocs/${VERSION} --delete
+        fi
         aws s3 cp --quiet pdf-output/zephyr.pdf s3://docs.zephyrproject.org/${VERSION}/zephyr.pdf