fix typo in load.sh.tpl #1528

Job	Run time
matrix-prep-os	1s
matrix-prep-bazelversion	3s
test (ubuntu-latest, 7.1.1, ., true)	38s
test (ubuntu-latest, 7.1.1, ., false)	28s
test (ubuntu-latest, 7.1.1, e2e/wasm, false)	4m 14s
test (ubuntu-latest, 7.1.1, e2e/smoke, true)	2m 27s
test (ubuntu-latest, 7.1.1, e2e/smoke, false)	15s
test (ubuntu-latest, 7.1.1, e2e/assertion, true)	4m 40s
test (ubuntu-latest, 6.4.0, ., true)	1m 9s
test (ubuntu-latest, 6.4.0, ., false)	55s
test (ubuntu-latest, 6.4.0, e2e/wasm, false)	3m 10s
test (ubuntu-latest, 6.4.0, e2e/smoke, true)	2m 30s
test (ubuntu-latest, 6.4.0, e2e/smoke, false)	18s
test (ubuntu-latest, 6.4.0, e2e/assertion, true)	4m 28s
	25m 16s

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