Apply suggestions from code review

Co-authored-by: CJ Yetman <[email protected]>

.github/workflows/build-and-push-Docker-image.yml

@@ -35,7 +35,7 @@ jobs:
           echo "full-image-name=$full_image_name" >> "$GITHUB_OUTPUT"
           echo "$full_image_name" > full-image-name
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: full-image-name
           path: .

.github/workflows/run-hadolint.yml

@@ -5,7 +5,7 @@ jobs:
   hadolint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: hadolint/[email protected]
         with:
           dockerfile: Dockerfile

DESCRIPTION

@@ -20,7 +20,7 @@ Description: What the package does (one paragraph).
 License: MIT + file LICENSE
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
-RoxygenNote: 7.2.3
+RoxygenNote: 7.3.1
 Imports: 
     digest,
     dplyr,

R/export_portfolio.R

@@ -48,6 +48,7 @@ export_portfolio <- function(
     x = portfolio_data,
     file = output_filepath,
     row.names = FALSE,
+    na = "",
     fileEncoding = "UTF-8"
   )
   logger::log_debug("Portfolio data written to file: ", output_filepath)