gha: remove GO_VERSION build-arg from builds

The same env-var is used for action/setup-go as for overriding
the default Go version in Dockerfiles, however action/setup-go
only accepts SemVer (e.g. 1.25.0-rc.1) whereas the official golang
image follows the Go project's versioning, which doesn't use
a SemVer-compatible format (go1.25rc1 / 1.25rc1).

Trying to use the same "GO_VERSION" value for both will therefore
fail.

As we're already updating the default version in the Dockerfile to
the version we want to use, let's remove the --build-arg, and use
the default that's set in the Dockerfile.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Author: thaJeztah

.github/workflows/.windows.yml

@@ -92,7 +92,6 @@ jobs:
           & docker build `
             --build-arg WINDOWS_BASE_IMAGE `
             --build-arg WINDOWS_BASE_IMAGE_TAG `
-            --build-arg GO_VERSION `
             -t ${{ env.TEST_IMAGE_NAME }} `
             -f Dockerfile.windows .
       -
@@ -172,7 +171,6 @@ jobs:
           & docker build `
             --build-arg WINDOWS_BASE_IMAGE `
             --build-arg WINDOWS_BASE_IMAGE_TAG `
-            --build-arg GO_VERSION `
             -t ${{ env.TEST_IMAGE_NAME }} `
             -f Dockerfile.windows .
       -

.github/workflows/buildkit.yml

@@ -220,7 +220,6 @@ jobs:
           & docker build `
             --build-arg WINDOWS_BASE_IMAGE `
             --build-arg WINDOWS_BASE_IMAGE_TAG `
-            --build-arg GO_VERSION `
             -t ${{ env.TEST_IMAGE_NAME }} `
             -f Dockerfile.windows .