chore: update opensearch plugins to SAP-cloud-infrastructure org releases (#1731)

Replace thecodingshrimp placeholder plugin URLs with the official
SAP-cloud-infrastructure org releases for opensearch-alerting and
opensearch-security-analytics at version 3.6.0.0-sci-v2.

Refs: CCLOUDSRC-1017
Version: 3.6.0.0-sci-v2

Signed-off-by: thecodingshrimp <leonard.stutzer@sap.com>

Author: thecodingshrimp

opensearch/build/Dockerfile

@@ -4,9 +4,9 @@ FROM opensearchproject/opensearch@sha256:57bd3c879ad27123a9a6cd75e2adba504189d31
 LABEL source_repository="https://github.com/cloudoperators/greenhouse-extensions.git"
 
 # Don't change the order!
-# Will change the plugins repository to one of SAP repos ASAP.
+# Plugins sourced from SAP-cloud-infrastructure org releases.
 RUN /usr/share/opensearch/bin/opensearch-plugin remove opensearch-security-analytics \
  && /usr/share/opensearch/bin/opensearch-plugin remove opensearch-alerting \
- && /usr/share/opensearch/bin/opensearch-plugin install --batch https://github.com/thecodingshrimp/opensearch-plugins-alerting/releases/download/v2-custom/opensearch-alerting-3.6.0.0-v2-SNAPSHOT.zip \
- && /usr/share/opensearch/bin/opensearch-plugin install --batch https://github.com/thecodingshrimp/opensearch-plugin-security-analytics/releases/download/v2-custom/opensearch-security-analytics-3.6.0.0-v2-SNAPSHOT.zip
+ && /usr/share/opensearch/bin/opensearch-plugin install --batch https://github.com/SAP-cloud-infrastructure/opensearch-alerting/releases/download/3.6.0.0-sci-v2/opensearch-alerting-3.6.0.0-sci-v2-SNAPSHOT.zip \
+ && /usr/share/opensearch/bin/opensearch-plugin install --batch https://github.com/SAP-cloud-infrastructure/opensearch-security-analytics/releases/download/3.6.0.0-sci-v2/opensearch-security-analytics-3.6.0.0-sci-v2-SNAPSHOT.zip