Dockerfile: update golangci-lint to v1.64.5, replace deprecated tenv linter in favor of usetesting

[thaJeztah]

Dockerfile: update golangci-lint to v1.64.5

adds go1.24 support

full diff: golangci/golangci-lint@v1.63.4...v1.64.5
changelog: https://golangci-lint.run/product/changelog/#v1645

cli/command/trust: fix "usetesting" linting errors

cli/command/trust/signer_add_test.go:71:18: os.CreateTemp("", ...) could be replaced by os.CreateTemp(t.TempDir(), ...) in TestSignerAddCommandNoTargetsKey (usetesting)
    tmpfile, err := os.CreateTemp("", "pemfile")
                    ^
cli/command/trust/signer_add_test.go:133:18: os.CreateTemp("", ...) could be replaced by os.CreateTemp(t.TempDir(), ...) in TestIngestPublicKeys (usetesting)
    tmpfile, err := os.CreateTemp("", "pemfile")
                    ^

cli/command/trust: fix "usetesting" linting errors

Also fix some unhandled errors

cli/debug/debug_test.go:12:3: os.Setenv() could be replaced by t.Setenv() in TestEnable (usetesting)
        os.Setenv("DEBUG", "")
        ^

golangci-lint: replace deprecated tenv linter in favor of usetesting

WARN The linter 'tenv' is deprecated (since v1.64.0) due to: Duplicate feature another linter. Replaced by usetesting.

- Human readable description for the release notes

- A picture of a cute animal (not mandatory but encouraged)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.18%. Comparing base (88a019a) to head (a8affef).
Report is 42 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5835   +/-   ##
=======================================
  Coverage   59.18%   59.18%           
=======================================
  Files         352      352           
  Lines       29548    29548           
=======================================
  Hits        17487    17487           
  Misses      11080    11080           
  Partials      981      981           

[thaJeztah]

Ah, derp, I thought I checked locally;

#15 [lint 4/4] RUN --mount=type=bind,target=.     --mount=type=cache,target=/root/.cache         golangci-lint run
#15 0.214 level=error msg="[formatter] gci: reading go.mod: read .: is a directory"
#15 68.48 cli/command/cli_test.go:85:26: context.Background() could be replaced by t.Context() in TestNewAPIClientFromFlagsWithCustomHeaders (usetesting)
#15 68.48 	_, err = apiClient.Ping(context.Background())
#15 68.48 	                        ^
#15 68.48 cli/command/cli_test.go:120:26: context.Background() could be replaced by t.Context() in TestNewAPIClientFromFlagsWithCustomHeadersFromEnv (usetesting)
#15 68.48 	_, err = apiClient.Ping(context.Background())
#15 68.48 	                        ^
#15 68.48 cli/command/cli_test.go:216:44: context.Background() could be replaced by t.Context() in TestInitializeFromClientHangs (usetesting)
#15 68.48 	timeoutCtx, cancel := context.WithTimeout(context.Background(), time.Second)
#15 68.48 	                                          ^
#15 68.48 cli/command/utils_test.go:86:37: context.Background() could be replaced by t.Context() in TestPromptForInput (usetesting)
#15 68.48 		ctx, cancel := context.WithCancel(context.Background())
#15 68.48 		                                  ^

[thaJeztah]

Ah, I see what's happening; golangci-lint is assuming go1.24, but t.Context() was not yet available in go1.23; https://pkg.go.dev/testing#T.Context.

ISTR I had a patch to make sure it picks the right version of Go; let me check

[thaJeztah]

Interesting; so that's already there in this repo, so why does it come with suggestions for go1.24?

cli/.golangci.yml

Lines 43 to 47 in 88a019a

	run:
	# prevent golangci-lint from deducting the go version to lint for through go.mod,
	# which causes it to fallback to go1.17 semantics.
	go: "1.23.6"
	timeout: 5m

[thaJeztah]

Looks like flaky test;

--- FAIL: TestConnectAndWait (0.00s)
    --- FAIL: TestConnectAndWait/connect_goroutine_exits_after_EOF (0.00s)
        socket_test.go:190: assertion failed: 6 (int) != 7 (numGoroutines + 1 int)