[v1.14] ci/ipsec: Re-enable node-to-node-encryption check #30401
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We disabled the check in commit 6896a4f ("ci: In conn-disrupt-test action, disable node-to-node-encryption check") because we used to observe flakes. As far as we understand, these flakes were due to an issue in branch v1.13, to which we downgrade as part as the IPsec upgrade/downgrade workflow.
The issue has been fixed in v1.13 with commit 3a4deb3 ("node: Fix IP removal from ipset on node updates"). With the recent patch release v1.13.11 that contains the fix, we can now re-enable the check.
Link: #29351
Link: #29898