go.mod: update golangci-lint to v1.37

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+[![CircleCI](https://circleci.com/gh/charithe/durationcheck.svg?style=svg)](https://circleci.com/gh/charithe/durationcheck)
+
+
+
+Duration Check
+===============
+
+A Go linter to detect cases where two `time.Duration` values are being multiplied in possibly erroneous ways.
+
+For example, consider the following (highly contrived) function:
+
+```go
+func waitFor(someDuration time.Duration) {
+    timeToWait := someDuration * time.Second
+    time.Sleep(timeToWait)
+}
+```
+
+Although the above code would compile without any errors, its runtime behaviour would almost certainly be incorrect. 
+A caller would reasonably expect `waitFor(5 * time.Seconds)` to wait for ~5 seconds but they would actually end up 
+waiting for ~1,388,889 hours.
+
+The above example is just for illustration purposes only. The problem is glaringly obvious in such a simple function 
+and even the greenest Gopher would discover the issue immediately. However, imagine a much more complicated function 
+with many more lines and it is not inconceivable that such logic errors could go unnoticed. 
+
+See the [test cases](testdata/src/a/a.go) for more examples of the types of errors detected by the linter.
+
+
+Installation
+-------------
+
+Requires Go 1.11 or above.
+
+```
+go get -u github.com/charithe/durationcheck/cmd/durationcheck
+```
+
+Usage
+-----
+
+Invoke `durationcheck` with your package name
+
+```
+durationcheck ./...
+# or
+durationcheck github.com/you/yourproject/...
+```