Fix enterprise contract violations

Changes:
- Required labels added
- Hermetic build enabled
- Source image build enabled

Author: sayan-biswas

.tekton/source-to-image-pull-request.yaml

@@ -77,19 +77,19 @@ spec:
       description: Skip checks against built image
       name: skip-checks
       type: string
-    - default: "false"
+    - default: "true"
       description: Execute the build with network isolation
       name: hermetic
       type: string
-    - default: ""
+    - default: '{"packages": [{"type": "gomod"}], "flags": ["gomod-vendor-check"]}'
       description: Build dependencies to be prefetched by Cachi2
       name: prefetch-input
       type: string
     - default: ""
       description: Image tag expiration time, time values could be something like
         1h, 2d, 3w for hours, days, and weeks, respectively.
       name: image-expires-after
-    - default: "false"
+    - default: "true"
       description: Build a source image.
       name: build-source-image
       type: string

.tekton/source-to-image-push.yaml

@@ -74,19 +74,19 @@ spec:
       description: Skip checks against built image
       name: skip-checks
       type: string
-    - default: "false"
+    - default: "true"
       description: Execute the build with network isolation
       name: hermetic
       type: string
-    - default: ""
+    - default: '{"packages": [{"type": "gomod"}], "flags": ["gomod-vendor-check"]}'
       description: Build dependencies to be prefetched by Cachi2
       name: prefetch-input
       type: string
     - default: ""
       description: Image tag expiration time, time values could be something like
         1h, 2d, 3w for hours, days, and weeks, respectively.
       name: image-expires-after
-    - default: "false"
+    - default: "true"
       description: Build a source image.
       name: build-source-image
       type: string

Dockerfile

@@ -1,8 +1,8 @@
 FROM registry.redhat.io/ubi8/go-toolset:1.21 AS builder
 
-ENV S2I_GIT_VERSION="" \
-    S2I_GIT_MAJOR="" \
-    S2I_GIT_MINOR=""
+ENV S2I_GIT_VERSION="1.4.0" \
+    S2I_GIT_MAJOR="1" \
+    S2I_GIT_MINOR="4"
 
 COPY . .
 
@@ -19,3 +19,18 @@ COPY --from=builder /tmp/s2i /usr/local/bin/s2i
 USER 1001
 
 ENTRYPOINT [ "/usr/local/bin/s2i" ]
+
+LABEL \
+    name="source-to-image/source-to-image" \
+    description="Source-to-Image is a builder image" \
+    summary="Source-to-Image is a builder image" \
+    version="1.4.0" \
+    architecture="${GOARCH}" \
+    vendor="Red Hat, Inc." \
+    com.redhat.component="source-to-image-container" \
+    maintainer="openshift-builds@redhat.com" \
+    io.k8s.description="Source-to-Image is a builder image" \
+    io.k8s.display-name="Source-to-Image" \
+    io.openshift.tags="source-to-image,s2i" \
+    io.openshift.maintainer.product="OpenShift Container Platform" \
+    io.openshift.maintainer.component="Source-to-Image" \