[One Workflow] Update liquidjs to version 10.26.0 and add sha256 and hmac_sha256 filters (#269989)

[VladimirFilonov]

Summary

Adopts Shopify-compatible sha256 and hmac_sha256 Liquid filters for Workflows by upgrading liquidjs to
10.26.0 (harttle/liquidjs#889). Filter behavior comes from liquidjs core—no custom server-side implementations.

• Execution (server): Built-in filters work via createWorkflowLiquidEngine() with existing renderSync / evalValueSync (Node crypto).
• Editor autocomplete: Added sha256 and hmac_sha256 entries with Shopify reference examples.
• Hover preview (browser): Switched evaluateExpression to async evalValue so crypto filters resolve correctly in the browser bundle (Web Crypto is async-only). Hover only shows evaluated filter output when viewing an execution on the Executions tab and hovering on the filter segment inside {{ }}.

Changes

Area	Change
package.json / yarn.lock	liquidjs 10.25.7 → 10.26.0
liquid_parse_cache.test.ts	Parse/validation tests for built-in crypto filters
evaluate_expression.ts	evalValueSync → await evalValue for browser crypto
unified_hover_provider.ts	await evaluateExpression(...)

Not changed: templating_engine.ts, liquid_parse_cache.ts — no registerFilter stubs needed for built-in filters.

Examples:

name: Crypto filters
enabled: true
triggers:
  - type: manual
    inputs:
      - name: message
        type: string
        default: "hello world"

consts:
  secret: "secret"

steps:
  - name: hmac_sha256
    type: console
    with:
      message: "{{ inputs.message | hmac_sha256: consts.secret }}"

  - name: sha256
    type: console
    with:
      message: "{{ inputs.message | sha256 }}"

[kibanamachine]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 97b3d9e

Failed CI Steps

• Scout Lane #10 - stateful-classic / default

Test Failures

• [job] [logs] Scout Lane #10 - stateful-classic / default / local-stateful-classic - Observability Landing Page (discover.isEsqlDefault enabled) - redirects to onboarding when no logs data exists

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
workflowsManagement	2.3MB	2.3MB	+1.8KB

[Kiryous]

LGTM