dev-lang/go: Update dev-lang/go to v1.20.2.

Update the bootstrap sdk as well since using the previous sdk was giving
error while emerging binutils:
https://fusion2.corp.google.com/invocations/493e8721-ce86-41ea-9d26-652112de360d/log

```
binutils-2.36.1-r9:
/mnt/host/source/chromite/licensing/ebuild_license_hook: could not
import chromite module:
/mnt/host/source/chromite/licensing/ebuild_license_hook.py: No module
named 'portage'
```

BUG=b/273847775
TEST=presubmit
RELEASE_NOTE=Updated dev-lang/go to v1.20.2. This resolves
CVE-2023-24532.

Change-Id: Ifa5d9a6cdb0431833f365e92e64e2d3da25f320c
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/chromiumos-overlay/+/45147
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Reviewed-by: Oleksandr Tymoshenko <ovt@google.com>
diff --git a/chromeos/binhost/host/sdk_version.conf b/chromeos/binhost/host/sdk_version.conf
index 03d87b9..c99881ea 100644
--- a/chromeos/binhost/host/sdk_version.conf
+++ b/chromeos/binhost/host/sdk_version.conf
@@ -10,4 +10,4 @@
 
 # Frozen version of SDK used for bootstrapping.
 # If unset, SDK_LATEST_VERSION will be used for bootstrapping.
-BOOTSTRAP_FROZEN_VERSION="105/17329.2.0/sdk/cros-sdk-17329.2.0"
+BOOTSTRAP_FROZEN_VERSION="109/17485.7.0/sdk/cros-sdk-17485.7.0"
diff --git a/dev-lang/go/Manifest b/dev-lang/go/Manifest
index 968aec4..0a545c2 100644
--- a/dev-lang/go/Manifest
+++ b/dev-lang/go/Manifest
@@ -1,2 +1,2 @@
 DIST go1.17.13-bootstrap-20230206.tar.gz 22206518 BLAKE2B b227e5197c6466e7dc4594646a6b5f7e2f5e8bc0d44b8ab45b488f5249eb64ff736fccf0e0070d6685a08361e1b3dd1a2ee7050df6395bec519a7ae7dca78630 SHA512 2820bdd679fdb5e37d4c601b26c246bab23d4e8e1b226ac37c38e90a68b693e877bff944275eb25e3296ee772e7b40ef7d71dd49cca524df4cb8e721bfb50c33
-DIST go1.20.1.src.tar.gz 26172675 BLAKE2B d6daccbebfe3dc014675499ad319eb9a6ae1382feaa42e7fe80d2e4a49bd7b3eccc3144f7cbd18c7c478e557d0e512eb1030d654a894929803838f192d551214 SHA512 57453419fafac8af10f4037b0162326555aab0e87cd1d246d5e977246c075a0504c23022d5c14bfcae9ca1c3250652ddd7c6fcf2209a926525e5f7d0d40ab52d
+DIST go1.20.2.src.tar.gz 26178725 BLAKE2B 2c896bab60d301b7a01df48a20e16726c50cd1df528092022a33ab11c543c8c5c7e54c6235ccc776de74ead08aaf7496a016b829fa51f96ae2b32beeafb44cb2 SHA512 ba8f894b1baa6b3c1bdaafa113feff8d16c25d91f8e44bd4e7ffb46d7b329309290f27385804399baa9834691290a209fc7a193b24fd197ea11a16ce4a1b9d39
diff --git a/dev-lang/go/go-1.20.1-r1.ebuild b/dev-lang/go/go-1.20.1-r1.ebuild
deleted file mode 120000
index f1fd7eb..0000000
--- a/dev-lang/go/go-1.20.1-r1.ebuild
+++ /dev/null
@@ -1 +0,0 @@
-go-1.20.1.ebuild
\ No newline at end of file
diff --git a/dev-lang/go/go-1.20.2-r1.ebuild b/dev-lang/go/go-1.20.2-r1.ebuild
new file mode 120000
index 0000000..7712324
--- /dev/null
+++ b/dev-lang/go/go-1.20.2-r1.ebuild
@@ -0,0 +1 @@
+go-1.20.2.ebuild
\ No newline at end of file
diff --git a/dev-lang/go/go-1.20.1.ebuild b/dev-lang/go/go-1.20.2.ebuild
similarity index 100%
rename from dev-lang/go/go-1.20.1.ebuild
rename to dev-lang/go/go-1.20.2.ebuild