Robocop 6.6.1

Fix false positive possible-variable-overwriting on dictionary access (#1431)

Following code will no longer trigger VAR08 possible-variable-overwriting:

Dictionary item
    VAR    &{data} =    &{EMPTY}
    ${data}[key] =    Browser.Get Text    ${LABEL.contentItem('${content}')}

From now on variable type should also be ignored by possible-variable-overwriting and inconsistent-variable-name
rules. For example ${variable} and &{variable} are considered as the same name.