[OOB] Upgrades 'flex' to '3.2.0'

[SvcGitHubPATagentoperatorimages]

Automated OOB update requested by SvcGitHubPATagentoperatorimages.

Agent: flex
Version: 3.1.0 -> 3.2.0

[github-actions]

Images built:

dotnet: ghcr.io/contrast-security-oss/agent-operator-images/agent-dotnet@sha256:f28ae498ffa31e8af08fc2231d864198dcde62fa2113574a01a7cae4f7898801
dotnet-core: ghcr.io/contrast-security-oss/agent-operator-images/agent-dotnet-core@sha256:706c4337f20036c0c5f16510f183f59ae86fa4df734173368b7b8470e1c1f845
dotnet-framework: ghcr.io/contrast-security-oss/agent-operator-images/agent-dotnet-framework@sha256:24271488b7b353a71b79998d3ce8d1d50accb755b96ee28d5ad49197f69baddb
java: ghcr.io/contrast-security-oss/agent-operator-images/agent-java@sha256:9d20d4b92329de2e604433039b2eb23c8a8a1ed92b401da575f6a1f1ad776fa6
nodejs: ghcr.io/contrast-security-oss/agent-operator-images/agent-nodejs@sha256:92dba2cfc8ee65d3aad8645c6ebe79f1b3cbbd4edbdb2e37b83fbbf14e37a6eb
php: ghcr.io/contrast-security-oss/agent-operator-images/agent-php@sha256:361ef572ebf7680a5bd49f7fe24156ad140d471bad521935c846458e2a60cd93
python: ghcr.io/contrast-security-oss/agent-operator-images/agent-python@sha256:1d2a0f76e054d48801ac880aefb5ac70d70c172f27bdc8a6515f375586a6a7e5
flex: ghcr.io/contrast-security-oss/agent-operator-images/agent-flex@sha256:6d15d2b01615ed4766824934f55b85227b5adfca719caf556785f41c8782d8f8