Merge #15533: test: .style.yapf: Set column_limit=160

1111f0718a test: .style.yapf: Set column_limit=160 (MarcoFalke)

Pull request description:

  The current style is pep8, as suggested in https://github.com/bitcoin/bitcoin/blob/master/test/functional/README.md#style-guidelines.

  generated with

  ```
  $ yapf --version
  yapf 0.24.0
  $ yapf --style-help --style=pep8 > .style.yapf
  ```

  However, we don't use the column_limit of 79 right now. Practically it is somewhere between 120-240.

  Some stats:

  ```
  column_limit=120: 115 files changed, 2423 insertions(+), 1408 deletions(-)
  column_limit=160: 108 files changed, 1563 insertions(+), 1247 deletions(-)
  column_limit=200: 104 files changed, 1255 insertions(+), 1178 deletions(-)

ACKs for commit 1111f0:
  practicalswift:
    utACK 1111f0718a agree with @ryanofsky
  ryanofsky:
    utACK 1111f0718a

Tree-SHA512: 1ce0da83b917496f4ea7d1af31b624517a78998a10091b6ba611737f2c819fa3cda1786307f15d20131a00fd95232818e3d1108950dd12b60c4674eaa447839f

.style.yapf

@@ -55,7 +55,7 @@ blank_line_before_nested_class_or_def=False
 coalesce_brackets=False
 
 # The column limit.
-column_limit=79
+column_limit=160
 
 # The style for continuation alignment. Possible values are:
 #