[OOB] Upgrades 'flex' to '1.3.0'

[SvcGitHubPATagentoperatorimages]

Automated OOB update requested by SvcGitHubPATagentoperatorimages.

Agent: flex
Version: 1.2.2 -> 1.3.0

[github-actions]

Images built:

dotnet-core: ghcr.io/contrast-security-oss/agent-operator-images/agent-dotnet-core@sha256:fb394e1bebfeed860af5214e47e84717e126d39ee8cde2aab290c2e5c87fed9e
dotnet-framework: ghcr.io/contrast-security-oss/agent-operator-images/agent-dotnet-framework@sha256:8fd513c1a38c2d15d589b847d6233fef9657cfe3b8b4fbf20d55a8edb0518589
java: ghcr.io/contrast-security-oss/agent-operator-images/agent-java@sha256:e23bd5ff02cc164f1edb38acb57c5cbb875145da23d106e58a97dac890137a97
nodejs: ghcr.io/contrast-security-oss/agent-operator-images/agent-nodejs@sha256:f532e5513b8177424925e6edd4c43c8f6e5feed085e2ac88bd0e33b71f0a7490
php: ghcr.io/contrast-security-oss/agent-operator-images/agent-php@sha256:e33399c7d48ea0dc4452b0414a7e3bb1488f0b0a536b97648f9442a4ababb728
python: ghcr.io/contrast-security-oss/agent-operator-images/agent-python@sha256:9cc0d02333d4a50b87f53f9bace28191f6712deff268428482995b9417223e84
flex: ghcr.io/contrast-security-oss/agent-operator-images/agent-flex@sha256:5562d33f50b9c38f31bbd55247ef21a90f6ee542a2f8781d37dc0119394b2600