Python fix for new release (#3247)

# Description of Changes

Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

---------

Co-authored-by: a <a>
Co-authored-by: pixeebot[bot] <104101892+pixeebot[bot]@users.noreply.github.com>
Co-authored-by: Connor Yoh <con.yoh13@gmail.com>

Dockerfile

@@ -73,8 +73,8 @@ RUN echo "@main https://dl-cdn.alpinelinux.org/alpine/edge/main" | tee -a /etc/a
     py3-pillow@testing \
     py3-pdf2image@testing && \
     python3 -m venv /opt/venv && \
-    pip install --upgrade pip && \
-    pip install --no-cache-dir --upgrade unoserver weasyprint && \
+    /opt/venv/bin/pip install --upgrade pip && \
+    /opt/venv/bin/pip install --no-cache-dir --upgrade unoserver weasyprint && \
     ln -s /usr/lib/libreoffice/program/uno.py /opt/venv/lib/python3.12/site-packages/ && \
     ln -s /usr/lib/libreoffice/program/unohelper.py /opt/venv/lib/python3.12/site-packages/ && \
     ln -s /usr/lib/libreoffice/program /opt/venv/lib/python3.12/site-packages/LibreOffice && \

Dockerfile.fat

@@ -83,8 +83,8 @@ RUN echo "@main https://dl-cdn.alpinelinux.org/alpine/edge/main" | tee -a /etc/a
     py3-pillow@testing \
     py3-pdf2image@testing && \
     python3 -m venv /opt/venv && \
-    pip install --upgrade pip && \
-    pip install --no-cache-dir --upgrade unoserver weasyprint && \
+    /opt/venv/bin/pip install --upgrade pip && \
+    /opt/venv/bin/pip install --no-cache-dir --upgrade unoserver weasyprint && \
     ln -s /usr/lib/libreoffice/program/uno.py /opt/venv/lib/python3.12/site-packages/ && \
     ln -s /usr/lib/libreoffice/program/unohelper.py /opt/venv/lib/python3.12/site-packages/ && \
     ln -s /usr/lib/libreoffice/program /opt/venv/lib/python3.12/site-packages/LibreOffice && \

exampleYmlFiles/test_cicd.yml

@@ -1,7 +1,7 @@
 services:
   stirling-pdf:
     container_name: Stirling-PDF-Security-Fat-with-login
-    image: stirlingtools/stirling-pdf:latest-fat
+    image: docker.stirlingpdf.com/stirlingtools/stirling-pdf:latest-fat
     deploy:
       resources:
         limits:

src/main/java/stirling/software/SPDF/controller/api/MergeController.java

@@ -147,10 +147,10 @@ public class MergeController {
                 filesToDelete.add(tempFile); // Add temp file to the list for later deletion
                 mergerUtility.addSource(tempFile); // Add source file to the merger utility
             }
-            
+
             mergedTempFile = Files.createTempFile("merged-", ".pdf").toFile();
             mergerUtility.setDestinationFileName(mergedTempFile.getAbsolutePath());
-            
+
             mergerUtility.mergeDocuments(
                     pdfDocumentFactory.getStreamCacheFunction(totalSize)); // Merge the documents
 
@@ -189,14 +189,14 @@ public class MergeController {
             log.error("Error in merge pdf process", ex);
             throw ex;
         } finally {
-        	if (mergedDocument != null) {
+            if (mergedDocument != null) {
                 mergedDocument.close(); // Close the merged document
             }
             for (File file : filesToDelete) {
                 if (file != null) {
                     Files.deleteIfExists(file.toPath()); // Delete temporary files
                 }
-            } 
+            }
             if (mergedTempFile != null) {
                 Files.deleteIfExists(mergedTempFile.toPath());
             }