go.toolchain.rev: update to Go 1.17.6

bradfitz · josharian · bradfitz · commit 1ffc21ad71ca · 2022-01-10T13:22:18.000-08:00
Co-authored-by: Josh Bleecher Snyder &lt;josh@tailscale.com&gt;
Change-Id: I572b2b36aa8acb53ea7fde638aa89a7510c84915
Signed-off-by: Brad Fitzpatrick &lt;bradfitz@tailscale.com&gt;
diff --git a/go.toolchain.rev b/go.toolchain.rev
@@ -1 +1 @@
-118f76c18c3f755ba0e6211e170a6422871f2791
+e44d304e5486d10f5485250ed5ba58fffd438d29

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-118f76c18c3f755ba0e6211e170a6422871f2791`
	`1`	`+e44d304e5486d10f5485250ed5ba58fffd438d29`