Docblock fixes
Tweaked the password-compat version constraint
Fixed the symfony/config version constraint

Fixes the symfony/config version constraint in the proxy manager bridge
Fixed the syntax of a composer.json file
minor #12783 Fixed the syntax of a composer.json file (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
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Fixed the syntax of a composer.json file

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | N/A
| License       | MIT
| Doc PR        | N/A

##### This pull request fixes the syntax of a composer.json file.

There should not be a space before a colon following a double quote. This is not bad syntax, but it just an inconsistency.

Commits
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0f8547a Fixed the syntax of a composer.json file
minor #12777 Tweaked the password-compat version constraint (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
----------

Tweaked the password-compat version constraint

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | N/A
| License       | MIT
| Doc PR        | N/A

##### This pull request tweaks the `"ircmaxell/password-compat` version constraint in the 2.3 branch.

I've updated the version constraint to `"~1.0"` match the way we require all "stable" releases. Note that this version constraint is technically different, but I consider it safe still.

Commits
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f703e56 Tweaked the password-compat version constraint
minor #12774 Docblock Fixes (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
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Docblock Fixes

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | N/A
| License       | MIT
| Doc PR        | N/A

##### This pull request fixes the docblock alignment as requested in #12760.

It was also necessary for me to ensure the `@return` annotations were correctly separated in order to accurately align the `@param` annotations.

Commits
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443307e Docblock fixes
minor #12781 Fixed the symfony/config version constraint (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
----------

Fixed the symfony/config version constraint

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | N/A
| License       | MIT
| Doc PR        | N/A

##### This pull request fixes the `symfony/config` version constraint in the proxy manager bridge.

Before this pull, composer was only allowing `v2.3.0` to be downloaded. This surely was not the intention. I've updated the version constraint from `"2.3"` to `"~2.3"` thus allowing all 2.x versions that are equal to or greater than `v2.3.0`.

Commits
-------

ec14f0f Fixed the symfony/config version constraint