Feature non-zipped actions artifacts (action v7) (#36786)

- content_encoding contains a slash => v4 artifact
- updated proto files to support mime_type and no longer return errors for upload-artifact v7
- json and txt files are now previewed in browser
- normalized content-disposition header creation
- azure blob storage uploads directly in servedirect mode (no proxying data)
- normalize content-disposition headers based on go mime package
  - getting both filename and filename* encoding is done via custom code

Closes #36829

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Signed-off-by: ChristopherHX <christopher.homberger@web.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

routers/api/actions/artifact.proto

@@ -5,12 +5,15 @@ import "google/protobuf/wrappers.proto";
 
 package github.actions.results.api.v1;
 
+option go_package = "code.gitea.io/gitea/routers/api/actions";
+
 message CreateArtifactRequest {
     string workflow_run_backend_id = 1;
     string workflow_job_run_backend_id = 2;
     string name = 3;
     google.protobuf.Timestamp expires_at = 4;
     int32 version = 5;
+    google.protobuf.StringValue mime_type = 6;
 }
 
 message CreateArtifactResponse {