hpack: drop quotes from version: field, apparently not required

[ci skip]

hledger-api/package.yaml

@@ -1,5 +1,5 @@
 name: hledger-api
-version: '1.13'
+version: 1.13
 synopsis: Web API server for the hledger accounting tool
 description: |
   This is a simple web API server for hledger data.

hledger-lib/package.yaml

@@ -1,5 +1,5 @@
 name: hledger-lib
-version: '1.13.1'
+version: 1.13.1
 synopsis: Core data types, parsers and functionality for the hledger accounting tools
 description: |
   This is a reusable library containing hledger's core functionality.

hledger-ui/package.yaml

@@ -1,5 +1,5 @@
 name        : hledger-ui
-version     : '1.13.1'
+version     : 1.13.1
 synopsis    : Curses-style user interface for the hledger accounting tool
 description : |
   This is hledger's curses-style interface.

hledger-web/package.yaml

@@ -1,5 +1,5 @@
 name: hledger-web
-version: '1.13'
+version: 1.13
 synopsis: Web interface for the hledger accounting tool
 description: |
   This is hledger's web interface.

hledger/package.yaml

@@ -1,5 +1,5 @@
 name: hledger
-version: '1.13.2'
+version: 1.13.2
 synopsis: Command-line interface for the hledger accounting tool
 description: |
   This is hledger's command-line interface.