docs: update review date (#43245)

docs: Update review date for last content update.

PR Close #43245

aio/content/guide/angular-compiler-options.md

@@ -230,4 +230,4 @@ In addition to the configuration file, you can also use [`tsc` command line opti
 
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-@reviewed 2021-08-18
+@reviewed 2021-09-15

aio/content/guide/architecture-next-steps.md

@@ -68,4 +68,4 @@ For some platforms and applications, you might also want to use the PWA (Progres
 
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-@reviewed 2021-09-02
+@reviewed 2021-09-15

aio/content/guide/deprecations.md

@@ -584,4 +584,4 @@ Angular used to sanitize `[style]` and `[style.prop]` bindings to prevent malici
 
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-@reviewed 2021-09-02
+@reviewed 2021-09-15

aio/content/guide/ivy.md

@@ -222,4 +222,4 @@ export * from './src/main.server';
 
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-@reviewed 2021-09-02
+@reviewed 2021-09-15

aio/content/guide/pipes.md

@@ -376,4 +376,4 @@ Due to precedence, if you want a pipe to apply to the result of a ternary, wrap
 
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-@reviewed 2021-09-02
+@reviewed 2021-09-15

aio/content/guide/workspace-config.md

@@ -554,4 +554,4 @@ These are useful if you only want source maps to map error stack traces in error
 
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-@reviewed 2021-09-02
+@reviewed 2021-09-15