Add support for SLES, Oracle and Amazon Linux

pkg/util/testdata/os-release-amzn

@@ -0,0 +1,9 @@
+NAME="Amazon Linux"
+VERSION="2"
+ID="amzn"
+ID_LIKE="centos rhel fedora"
+VERSION_ID="2"
+PRETTY_NAME="Amazon Linux 2"
+ANSI_COLOR="0;33"
+CPE_NAME="cpe:2.3:o:amazon:amazon_linux:2"
+HOME_URL="https://amazonlinux.com/"

pkg/util/testdata/os-release-ol

@@ -0,0 +1,18 @@
+NAME="Oracle Linux Server"
+VERSION="9.0"
+ID="ol"
+ID_LIKE="fedora"
+VARIANT="Server"
+VARIANT_ID="server"
+VERSION_ID="9.0"
+PLATFORM_ID="platform:el9"
+PRETTY_NAME="Oracle Linux Server 9.0"
+ANSI_COLOR="0;31"
+CPE_NAME="cpe:/o:oracle:linux:9:0:server"
+HOME_URL="https://linux.oracle.com/"
+BUG_REPORT_URL="https://github.com/oracle/oracle-linux"
+
+ORACLE_BUGZILLA_PRODUCT="Oracle Linux 9"
+ORACLE_BUGZILLA_PRODUCT_VERSION=9.0
+ORACLE_SUPPORT_PRODUCT="Oracle Linux"
+ORACLE_SUPPORT_PRODUCT_VERSION=9.0

pkg/util/testdata/os-release-sles

@@ -0,0 +1,9 @@
+NAME="SLES"
+VERSION="15-SP4"
+VERSION_ID="15.4"
+PRETTY_NAME="SUSE Linux Enterprise Server 15 SP4"
+ID="sles"
+ID_LIKE="suse"
+ANSI_COLOR="0;32"
+CPE_NAME="cpe:/o:suse:sles:15:sp4"
+DOCUMENTATION_URL="https://documentation.suse.com/"