revert module upgrade #15

Job	Run time
changes	6s
e2e-test-echo	0s
fastcgi-helloserver	0s
ext-auth-example-authsvc	0s
go-grpc-greeter-server	0s
httpbun	0s
kube-webhook-certgen (v1.26.15)	2m 42s
opentelemetry (1.25.3)	5m 58s
nginx125	16s
opentelemetry (1.21.6)	6m 9s
kube-webhook-certgen (v1.27.13)	2m 46s
kube-webhook-certgen (v1.28.9)	2m 43s
kube-webhook-certgen (v1.29.4)	2m 45s
kube-webhook-certgen (v1.30.0)	2m 43s
cfssl / changestag	6s
custom-error-pages / changestag	3s
custom-error-pages / Build	26s
cfssl / Build	13s
custom-error-pages / Push	0s
cfssl / Push	0s
	26m 56s

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