Update ruamel-yaml requirement from <0.18,>=0.17.6 to >=0.17.6,<0.19 (#253)

* Update ruamel-yaml requirement from <0.18,>=0.17.6 to >=0.17.6,<0.19

Updates the requirements on [ruamel-yaml](https://sourceforge.net/p/ruamel-yaml/code/ci/default/tree) to permit the latest version.

---
updated-dependencies:
- dependency-name: ruamel-yaml
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Michael R. Crusoe <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -3,5 +3,4 @@ packaging
 rdflib
 requests
 schema-salad >= 8.3.20220825114525, < 9
-ruamel.yaml >= 0.17.6, < 0.18;python_version>='3.7'
-ruamel.yaml >= 0.16.12, < 0.19
+ruamel.yaml >= 0.17.6, < 0.19

testdata/dockstore-tool-md5sum.cwl

@@ -43,7 +43,6 @@ inputs:
 outputs:
   output_file:
     type: File
-    format: http://edamontology.org/data_3671
     outputBinding:
       glob: md5sum.txt
     doc: A text file that contains a single line that is the md5sum of the input file.