Add go-import-redirector

.gitmodules

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+[submodule "go-import-redirector/go-import-redirector"]
+	path = go-import-redirector/go-import-redirector
+	url = https://github.com/rsc/go-import-redirector

go-import-redirector/README.md

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+# go-import-redirector
+
+The [go-import-redirector](https://gitea.elara.ws/Elara6331/-/packages/container/go-import-redirector/latest) image contains rsc's [go-import-redirector](https://github.com/rsc/go-import-redirector) project
+
+This image uses [ko.build](https://ko.build)

go-import-redirector/build.sh

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+#!/bin/bash
+
+pushd go-import-redirector
+KO_DOCKER_REPO=gitea.elara.ws/elara6331 ko build -B \
+	--platform=linux/amd64,linux/arm64,linux/riscv64 \
+	--sbom=none
+popd

go-import-redirector/go-import-redirector

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+Subproject commit 4b5c2b9050dfbdc8830f5220e610adb0d75c539f