ci: migrate from wget to curl

Better error handling is more reliable.

Options:
 -L, follow location
 --retry, number of retries
 --retry-all-errors, does not fail on ALL errors, that's why there is -f
 -f, fail fast with no output at all on server errors
 --retry-delay, make curl sleep this amount of time before each retry

Signed-off-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20788>

.gitlab-ci/download-git-cache.sh

@@ -16,10 +16,11 @@ fi
 TMP_DIR=$(mktemp -d)
 
 echo "Downloading archived master..."
-/usr/bin/wget -O $TMP_DIR/$CI_PROJECT_NAME.tar.gz \
-              https://${MINIO_HOST}/git-cache/${FDO_UPSTREAM_REPO}/$CI_PROJECT_NAME.tar.gz
+curl --retry 4 -f --retry-all-errors --retry-delay 60 \
+	      -o "$TMP_DIR/$CI_PROJECT_NAME.tar.gz" \
+              "https://${MINIO_HOST}/git-cache/${FDO_UPSTREAM_REPO}/$CI_PROJECT_NAME.tar.gz"
 
-# check wget error code
+# check curl error code
 if [[ $? -ne 0 ]]
 then
     echo "Repository cache not available"