goleak in the telemetry/cte_test

[hawkingrei]

Bug Report

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3. What did you see instead (Required)

==================== Test output for //telemetry/cte_test:cte_test_test:
 goleak: Errors on successful test run: found unexpected goroutines:
[Goroutine 23222 in state syscall, with syscall.Syscall on top of the stack:
goroutine 23222 [syscall]:
syscall.Syscall(0xc005fb6788?, 0x19ea445?, 0xc0006f5380?, 0x1a1a12c?)
	GOROOT/src/syscall/syscall_linux.go:68 +0x31
syscall.read(0x1a1b345?, {0xc005980900, 0x89d, 0x0?})
	GOROOT/src/syscall/zsyscall_linux_amd64.go:696 +0x5d
syscall.Read(0xc004a41c38?, {0xc005980900, 0x89d, 0x89d})
	GOROOT/src/syscall/syscall_unix.go:183 +0x4f
internal/poll.ignoringEINTRIO(...)
	GOROOT/src/internal/poll/fd_unix.go:794
internal/poll.(*FD).Read(0xc004a41c20?, {0xc005980900?, 0x89d?, 0x89d?})
	GOROOT/src/internal/poll/fd_unix.go:163 +0x44c
os.(*File).read(...)
	GOROOT/src/os/file_posix.go:31
os.(*File).Read(0xc0054e29a0, {0xc005980900, 0x89d, 0x89d})
	GOROOT/src/os/file.go:119 +0xc8
os.ReadFile({0xc0058bfa40, 0x29})
	GOROOT/src/os/file.go:725 +0x285
crypto/x509.loadSystemRoots()
	GOROOT/src/crypto/x509/root_unix.go:70 +0x44a
crypto/x509.initSystemRoots()
	GOROOT/src/crypto/x509/root.go:28 +0x2a
sync.(*Once).doSlow(0xe884040, 0x7108da8)
	GOROOT/src/sync/once.go:74 +0x102
sync.(*Once).Do(0xe884040, 0xc005d07cc0?)
	GOROOT/src/sync/once.go:65 +0x47
crypto/x509.systemRootsPool(...)
	GOROOT/src/crypto/x509/root.go:23
crypto/x509.(*Certificate).Verify(0xc000a46680, {{0xc000182220, 0x15}, 0xc0089b9aa0, 0x0, {0xc0f280eef512d039, 0x7d66184d0, 0xd918460}, {0x0, 0x0, ...}, ...})
	GOROOT/src/crypto/x509/verify.go:782 +0x2ea
crypto/tls.(*Conn).verifyServerCertificate(0xc005cbee00, {0xc0089b9590, 0x2, 0x2})
	GOROOT/src/crypto/tls/handshake_client.go:874 +0x958
crypto/tls.(*clientHandshakeState).doFullHandshake(0xc005fb7b80)
	GOROOT/src/crypto/tls/handshake_client.go:518 +0x2e5
crypto/tls.(*clientHandshakeState).handshake(0xc005fb7b80)
	GOROOT/src/crypto/tls/handshake_client.go:436 +0x6a7
crypto/tls.(*Conn).clientHandshake(0xc005cbee00, {0x8881868, 0xc008325840})
	GOROOT/src/crypto/tls/handshake_client.go:235 +0x678
crypto/tls.(*Conn).handshakeContext(0xc005cbee00, {0x88818d8, 0xc0047311a0})
	GOROOT/src/crypto/tls/conn.go:1462 +0x476
crypto/tls.(*Conn).HandshakeContext(...)
	GOROOT/src/crypto/tls/conn.go:1405
net/http.(*persistConn).addTLS.func2()
	GOROOT/src/net/http/transport.go:1538 +0xaf
created by net/http.(*persistConn).addTLS
	GOROOT/src/net/http/transport.go:1534 +0x706 

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