ci: add v7 branch to matrix for installation tests + security scans (… #83

Job	Run time
go-versions / go-versions	3s
Trivy Scan of Docker Image	4m 9s
integration-test / Integration Tests - staging (Go 1.22.0)	5m 21s
Go 1.21.7 / Unit Tests	1m 17s
Go 1.21.7 / Benchmarks	23s
Go 1.22.0 / Benchmarks	17s
Go 1.22.0 / Unit Tests	1m 17s
	12m 47s

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