Move core actions to a subpackage

Signed-off-by: Helder Correia <174525+helderco@users.noreply.github.com>

tests/tasks/dockerfile/build_args.cue

@@ -2,12 +2,13 @@ package testing
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
 	client: filesystem: testdata: read: contents: dagger.#FS
 
-	actions: build: dagger.#Dockerfile & {
+	actions: build: core.#Dockerfile & {
 		source: client.filesystem.testdata.read.contents
 		dockerfile: contents: """
 			FROM alpine:latest@sha256:ab00606a42621fb68f2ed6ad3c88be54397f981a7b70a79db3d1172b11c4367d

tests/tasks/dockerfile/build_auth.cue

@@ -2,6 +2,7 @@ package testing
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
@@ -15,12 +16,12 @@ dagger.#Plan & {
 	}
 
 	actions: {
-		sopsSecrets: dagger.#DecodeSecret & {
+		sopsSecrets: core.#DecodeSecret & {
 			format: "yaml"
 			input:  client.commands.sops.stdout
 		}
 
-		build: dagger.#Dockerfile & {
+		build: core.#Dockerfile & {
 			source: client.filesystem.testdata.read.contents
 			auth: "daggerio/ci-test:private-pull": {
 				username: "daggertest"

tests/tasks/dockerfile/dockerfile.cue

@@ -2,17 +2,18 @@ package testing
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
 	client: filesystem: testdata: read: contents: dagger.#FS
 
 	actions: {
-		build: dagger.#Dockerfile & {
+		build: core.#Dockerfile & {
 			source: client.filesystem.testdata.read.contents
 		}
 
-		verify: dagger.#Exec & {
+		verify: core.#Exec & {
 			input: build.output
 			args: ["sh", "-c", "test $(cat /dir/foo) = foobar"]
 		}

tests/tasks/dockerfile/dockerfile_path.cue

@@ -2,18 +2,19 @@ package testing
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
 	client: filesystem: testdata: read: contents: dagger.#FS
 
 	actions: {
-		build: dagger.#Dockerfile & {
+		build: core.#Dockerfile & {
 			source: client.filesystem.testdata.read.contents
 			dockerfile: path: "./dockerfilepath/Dockerfile.custom"
 		}
 
-		verify: dagger.#Exec & {
+		verify: core.#Exec & {
 			input: build.output
 			args: ["sh", "-c", "test $(cat /test) = dockerfilePath"]
 		}

tests/tasks/dockerfile/image_config.cue

@@ -2,6 +2,7 @@ package testing
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
@@ -9,7 +10,7 @@ dagger.#Plan & {
 
 	actions: {
 		// FIXME: this doesn't test anything beside not crashing
-		build: dagger.#Dockerfile & {
+		build: core.#Dockerfile & {
 			source: client.filesystem.testdata.read.contents
 			dockerfile: contents: """
 				FROM alpine:latest@sha256:ab00606a42621fb68f2ed6ad3c88be54397f981a7b70a79db3d1172b11c4367d

tests/tasks/dockerfile/inlined_dockerfile.cue

@@ -2,13 +2,14 @@ package testing
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
 	client: filesystem: testdata: read: contents: dagger.#FS
 
 	actions: {
-		build: dagger.#Dockerfile & {
+		build: core.#Dockerfile & {
 			source: client.filesystem.testdata.read.contents
 			dockerfile: contents: """
 				FROM alpine:latest@sha256:ab00606a42621fb68f2ed6ad3c88be54397f981a7b70a79db3d1172b11c4367d
@@ -16,7 +17,7 @@ dagger.#Plan & {
 				"""
 		}
 
-		verify: dagger.#Exec & {
+		verify: core.#Exec & {
 			input: build.output
 			args: ["sh", "-c", "test $(cat /output) = foobar"]
 		}

tests/tasks/dockerfile/inlined_dockerfile_heredoc.cue

@@ -2,13 +2,14 @@ package testing
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
 	client: filesystem: testdata: read: contents: dagger.#FS
 
 	actions: {
-		build: dagger.#Dockerfile & {
+		build: core.#Dockerfile & {
 			source: client.filesystem.testdata.read.contents
 			dockerfile: contents: """
 				# syntax = docker/dockerfile:1.3
@@ -17,7 +18,7 @@ dagger.#Plan & {
 				"""
 		}
 
-		verify: dagger.#Exec & {
+		verify: core.#Exec & {
 			input: build.output
 			args: ["sh", "-c", "test $(cat /output) = foobar"]
 		}

tests/tasks/dockerfile/labels.cue

@@ -2,6 +2,7 @@ package testing
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
@@ -9,7 +10,7 @@ dagger.#Plan & {
 
 	actions: {
 		// FIXME: this doesn't test anything beside not crashing
-		build: dagger.#Dockerfile & {
+		build: core.#Dockerfile & {
 			source: client.filesystem.testdata.read.contents
 			dockerfile: contents: """
 				FROM alpine:latest@sha256:ab00606a42621fb68f2ed6ad3c88be54397f981a7b70a79db3d1172b11c4367d

tests/tasks/dockerfile/platform.cue

@@ -2,6 +2,7 @@ package testing
 
 import (
 	"dagger.io/dagger"
+	"dagger.io/dagger/core"
 )
 
 dagger.#Plan & {
@@ -9,7 +10,7 @@ dagger.#Plan & {
 
 	actions: {
 		// FIXME: this doesn't test anything beside not crashing
-		build: dagger.#Dockerfile & {
+		build: core.#Dockerfile & {
 			source: client.filesystem.testdata.read.contents
 			dockerfile: contents: """
 				FROM alpine:latest@sha256:ab00606a42621fb68f2ed6ad3c88be54397f981a7b70a79db3d1172b11c4367d