Changes from Version 2.2.0 to 2.8.6 org.springdoc:springdoc-openapi-starter-webmvc-ui (#3400)

# Description of Changes

Please provide a summary of the changes, including:

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

Closes #3399

---

## 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: Anthony Stirling <[email protected]>

src/main/java/stirling/software/SPDF/controller/api/pipeline/PipelineController.java

@@ -51,7 +51,7 @@ public class PipelineController {
         this.postHogService = postHogService;
     }
 
-    @PostMapping("/handleData")
+    @PostMapping(value = "/handleData", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
     public ResponseEntity<byte[]> handleData(@ModelAttribute HandleDataRequest request)
             throws JsonMappingException, JsonProcessingException {
         MultipartFile[] files = request.getFileInput();

src/main/java/stirling/software/SPDF/controller/api/security/ValidateSignatureController.java

@@ -22,6 +22,7 @@ import org.bouncycastle.cms.SignerInformationStore;
 import org.bouncycastle.cms.jcajce.JcaSimpleSignerInfoVerifierBuilder;
 import org.bouncycastle.util.Store;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -58,7 +59,7 @@ public class ValidateSignatureController {
             description =
                     "Validates the digital signatures in a PDF file against default or custom"
                             + " certificates. Input:PDF Output:JSON Type:SISO")
-    @PostMapping(value = "/validate-signature")
+    @PostMapping(value = "/validate-signature", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
     public ResponseEntity<List<SignatureValidationResult>> validateSignature(
             @ModelAttribute SignatureValidationRequest request) throws IOException {
         List<SignatureValidationResult> results = new ArrayList<>();