Up-rev golang to 1.21.7 to support kubernetes 1.29.2
To use this version, instead of the default one provided by golang-go
package, add /usr/lib/go-1.21/bin/ to PATH, or invoke
/usr/lib/go-1.21/bin/go directly.
Packages that specify Build-Depends: golang-any, bring in the default
golang-go package.
Test Plan:
PASS: golang-1.21 package build successful
PASS: All packages build successfully.
PASS: Verify by Installing the ISO as AIO-SX.
Story: 2011047
Task: 49631
Change-Id: Ibabd72bbd348d3ab4b8289fda16e3ecaa9d5d66e
Signed-off-by: Boovan Rajendran <boovan.rajendran@windriver.com>